diff --git a/GlobalAssemblyInfo.cs b/GlobalAssemblyInfo.cs
index 635bc79..9fa1283 100644
--- a/GlobalAssemblyInfo.cs
+++ b/GlobalAssemblyInfo.cs
@@ -30,5 +30,5 @@
 //      Revision
 //
 
-[assembly: AssemblyVersion("24.6.1")]
-[assembly: AssemblyFileVersion("24.6.1")]
+[assembly: AssemblyVersion("24.6.3")]
+[assembly: AssemblyFileVersion("24.6.3")]
diff --git a/src/AvaTaxApi.cs b/src/AvaTaxApi.cs
index eee5f81..bf181fb 100644
--- a/src/AvaTaxApi.cs
+++ b/src/AvaTaxApi.cs
@@ -17,7 +17,7 @@
  * @author     Sachin Baijal <sachin.baijal@avalara.com>
  * @copyright  2004-2023 Avalara, Inc.
  * @license    https://www.apache.org/licenses/LICENSE-2.0
- * @version    24.6.1
+ * @version    24.6.3
  * @link       https://github.com/avadev/AvaTax-REST-V2-DotNet-SDK
  */
 
@@ -28,7 +28,7 @@ public partial class AvaTaxClient : IAvaTaxClient
         /// <summary>
         /// Returns the version number of the API used to generate this class
         /// </summary>
-        public static string API_VERSION { get { return "24.6.1"; } }
+        public static string API_VERSION { get { return "24.6.3"; } }
 
 #region Methods
 
@@ -1502,7 +1502,7 @@ public FetchResult<CustomerModel> ListCustomersForCertificate(Int32 companyId, I
         ///  * customers - Retrieves the list of customers linked to the certificate.
         ///  * po_numbers - Retrieves all PO numbers tied to the certificate.
         ///  * attributes - Retrieves all attributes applied to the certificate.</param>
-        /// <param name="filter">A filter statement to identify specific records to retrieve. For more information on filtering, see [Filtering in REST](http://developer.avalara.com/avatax/filtering-in-rest/).<br />*Not filterable:* exemptionNumber, status, ecmsId, ecmsStatus, pdf, pages</param>
+        /// <param name="filter">A filter statement to identify specific records to retrieve. For more information on filtering, see [Filtering in REST](http://developer.avalara.com/avatax/filtering-in-rest/).<br />*Not filterable:* exemptionNumber, status, ecmStatus, ecmsId, ecmsStatus, pdf, pages</param>
         /// <param name="top">If nonzero, return no more than this number of results. Used with `$skip` to provide pagination for large datasets. Unless otherwise specified, the maximum number of records that can be returned from an API call is 1,000 records.</param>
         /// <param name="skip">If nonzero, skip this number of results before returning data. Used with `$top` to provide pagination for large datasets.</param>
         /// <param name="orderBy">A comma separated list of sort statements in the format `(fieldname) [ASC|DESC]`, for example `id ASC`.</param>
@@ -3150,7 +3150,7 @@ public FetchResult<CustomerAttributeModel> ListAttributesForCustomer(Int32 compa
         ///  * customers - Retrieves the list of customers linked to the certificate.
         ///  * po_numbers - Retrieves all PO numbers tied to the certificate.
         ///  * attributes - Retrieves all attributes applied to the certificate.</param>
-        /// <param name="filter">A filter statement to identify specific records to retrieve. For more information on filtering, see [Filtering in REST](http://developer.avalara.com/avatax/filtering-in-rest/).<br />*Not filterable:* exemptionNumber, status, ecmsId, ecmsStatus, pdf, pages</param>
+        /// <param name="filter">A filter statement to identify specific records to retrieve. For more information on filtering, see [Filtering in REST](http://developer.avalara.com/avatax/filtering-in-rest/).<br />*Not filterable:* exemptionNumber, status, ecmStatus, ecmsId, ecmsStatus, pdf, pages</param>
         /// <param name="top">If nonzero, return no more than this number of results. Used with `$skip` to provide pagination for large datasets. Unless otherwise specified, the maximum number of records that can be returned from an API call is 1,000 records.</param>
         /// <param name="skip">If nonzero, skip this number of results before returning data. Used with `$top` to provide pagination for large datasets.</param>
         /// <param name="orderBy">A comma separated list of sort statements in the format `(fieldname) [ASC|DESC]`, for example `id ASC`.</param>
@@ -3241,7 +3241,7 @@ public ExemptionStatusModel ListValidCertificatesForCustomer(Int32 companyId, St
         /// Swagger Name: AvaTaxClient
         /// <param name="companyId">The unique ID number of the company that recorded this customer</param>
         /// <param name="include">OPTIONAL - You can specify the value `certificates` to fetch information about certificates linked to the customer.</param>
-        /// <param name="filter">A filter statement to identify specific records to retrieve. For more information on filtering, see [Filtering in REST](http://developer.avalara.com/avatax/filtering-in-rest/).<br />*Not filterable:* shipTos</param>
+        /// <param name="filter">A filter statement to identify specific records to retrieve. For more information on filtering, see [Filtering in REST](http://developer.avalara.com/avatax/filtering-in-rest/).</param>
         /// <param name="top">If nonzero, return no more than this number of results. Used with `$skip` to provide pagination for large datasets. Unless otherwise specified, the maximum number of records that can be returned from an API call is 1,000 records.</param>
         /// <param name="skip">If nonzero, skip this number of results before returning data. Used with `$top` to provide pagination for large datasets.</param>
         /// <param name="orderBy">A comma separated list of sort statements in the format `(fieldname) [ASC|DESC]`, for example `id ASC`.</param>
@@ -6269,13 +6269,13 @@ public GLAccountSuccessResponseModel UpdateGLAccount(Int32 companyid, Int64 glac
         /// Swagger Name: AvaTaxClient
         /// <param name="companyId">The ID of the company that owns this item.</param>
         /// <param name="itemId">The ID of the item you wish to delete the classifications.</param>
-        public List<ErrorDetail> BatchDeleteItemClassifications(Int32 companyId, Int64 itemId)
+        public List<AssociatedObjectDeletedErrorDetailsModel> BatchDeleteItemClassifications(Int32 companyId, Int64 itemId)
         {
             var path = new AvaTaxPath("/api/v2/companies/{companyId}/items/{itemId}/classifications");
             path.ApplyField("companyId", companyId);
             path.ApplyField("itemId", itemId);
             _clientHeaders[Constants.AVALARA_CLIENT_HEADER]=string.Format(ClientID, API_VERSION);
-            return RestCall<List<ErrorDetail>>("DELETE", path, null);
+            return RestCall<List<AssociatedObjectDeletedErrorDetailsModel>>("DELETE", path, null);
         }
 
 
@@ -6298,13 +6298,13 @@ public List<ErrorDetail> BatchDeleteItemClassifications(Int32 companyId, Int64 i
         /// Swagger Name: AvaTaxClient
         /// <param name="companyId">The ID of the company that owns this item.</param>
         /// <param name="itemId">The ID of the item you wish to delete the parameters.</param>
-        public List<ErrorDetail> BatchDeleteItemParameters(Int32 companyId, Int64 itemId)
+        public List<AssociatedObjectDeletedErrorDetailsModel> BatchDeleteItemParameters(Int32 companyId, Int64 itemId)
         {
             var path = new AvaTaxPath("/api/v2/companies/{companyId}/items/{itemId}/parameters");
             path.ApplyField("companyId", companyId);
             path.ApplyField("itemId", itemId);
             _clientHeaders[Constants.AVALARA_CLIENT_HEADER]=string.Format(ClientID, API_VERSION);
-            return RestCall<List<ErrorDetail>>("DELETE", path, null);
+            return RestCall<List<AssociatedObjectDeletedErrorDetailsModel>>("DELETE", path, null);
         }
 
 
@@ -6513,13 +6513,13 @@ public ItemTaxCodeClassificationRequestOutputModel CreateTaxCodeClassificationRe
         /// Swagger Name: AvaTaxClient
         /// <param name="companyId">The ID of the company that owns this item.</param>
         /// <param name="itemCode">The code of the item you want to delete.</param>
-        public List<ErrorDetail> DeleteCatalogueItem(Int32 companyId, String itemCode)
+        public List<ObjectDeletedErrorModel> DeleteCatalogueItem(Int32 companyId, String itemCode)
         {
             var path = new AvaTaxPath("/api/v2/companies/{companyId}/itemcatalogue/{itemCode}");
             path.ApplyField("companyId", companyId);
             path.ApplyField("itemCode", itemCode);
             _clientHeaders[Constants.AVALARA_CLIENT_HEADER]=string.Format(ClientID, API_VERSION);
-            return RestCall<List<ErrorDetail>>("DELETE", path, null);
+            return RestCall<List<ObjectDeletedErrorModel>>("DELETE", path, null);
         }
 
 
@@ -6544,13 +6544,13 @@ public List<ErrorDetail> DeleteCatalogueItem(Int32 companyId, String itemCode)
         /// Swagger Name: AvaTaxClient
         /// <param name="companyId">The ID of the company that owns this item.</param>
         /// <param name="id">The ID of the item you wish to delete.</param>
-        public List<ErrorDetail> DeleteItem(Int32 companyId, Int64 id)
+        public List<ObjectDeletedErrorModel> DeleteItem(Int32 companyId, Int64 id)
         {
             var path = new AvaTaxPath("/api/v2/companies/{companyId}/items/{id}");
             path.ApplyField("companyId", companyId);
             path.ApplyField("id", id);
             _clientHeaders[Constants.AVALARA_CLIENT_HEADER]=string.Format(ClientID, API_VERSION);
-            return RestCall<List<ErrorDetail>>("DELETE", path, null);
+            return RestCall<List<ObjectDeletedErrorModel>>("DELETE", path, null);
         }
 
 
@@ -6572,14 +6572,14 @@ public List<ErrorDetail> DeleteItem(Int32 companyId, Int64 id)
         /// <param name="companyId">The company id.</param>
         /// <param name="itemId">The item id.</param>
         /// <param name="id">The item classification id.</param>
-        public List<ErrorDetail> DeleteItemClassification(Int32 companyId, Int64 itemId, Int64 id)
+        public List<ObjectDeletedErrorModel> DeleteItemClassification(Int32 companyId, Int64 itemId, Int64 id)
         {
             var path = new AvaTaxPath("/api/v2/companies/{companyId}/items/{itemId}/classifications/{id}");
             path.ApplyField("companyId", companyId);
             path.ApplyField("itemId", itemId);
             path.ApplyField("id", id);
             _clientHeaders[Constants.AVALARA_CLIENT_HEADER]=string.Format(ClientID, API_VERSION);
-            return RestCall<List<ErrorDetail>>("DELETE", path, null);
+            return RestCall<List<ObjectDeletedErrorModel>>("DELETE", path, null);
         }
 
 
@@ -6603,14 +6603,14 @@ public List<ErrorDetail> DeleteItemClassification(Int32 companyId, Int64 itemId,
         /// <param name="companyId">The company id</param>
         /// <param name="itemId">The item id</param>
         /// <param name="id">The parameter id</param>
-        public List<ErrorDetail> DeleteItemParameter(Int32 companyId, Int64 itemId, Int64 id)
+        public List<ObjectDeletedErrorModel> DeleteItemParameter(Int32 companyId, Int64 itemId, Int64 id)
         {
             var path = new AvaTaxPath("/api/v2/companies/{companyId}/items/{itemId}/parameters/{id}");
             path.ApplyField("companyId", companyId);
             path.ApplyField("itemId", itemId);
             path.ApplyField("id", id);
             _clientHeaders[Constants.AVALARA_CLIENT_HEADER]=string.Format(ClientID, API_VERSION);
-            return RestCall<List<ErrorDetail>>("DELETE", path, null);
+            return RestCall<List<ObjectDeletedErrorModel>>("DELETE", path, null);
         }
 
 
@@ -6630,14 +6630,14 @@ public List<ErrorDetail> DeleteItemParameter(Int32 companyId, Int64 itemId, Int6
         /// <param name="companyId">The ID of the company that defined these items</param>
         /// <param name="itemId">The ID of the item as defined by the company that owns this tag.</param>
         /// <param name="itemTagDetailId">The ID of the item tag detail you wish to delete.</param>
-        public List<ErrorDetail> DeleteItemTag(Int32 companyId, Int64 itemId, Int32 itemTagDetailId)
+        public List<ObjectDeletedErrorModel> DeleteItemTag(Int32 companyId, Int64 itemId, Int32 itemTagDetailId)
         {
             var path = new AvaTaxPath("/api/v2/companies/{companyId}/items/{itemId}/tags/{itemTagDetailId}");
             path.ApplyField("companyId", companyId);
             path.ApplyField("itemId", itemId);
             path.ApplyField("itemTagDetailId", itemTagDetailId);
             _clientHeaders[Constants.AVALARA_CLIENT_HEADER]=string.Format(ClientID, API_VERSION);
-            return RestCall<List<ErrorDetail>>("DELETE", path, null);
+            return RestCall<List<ObjectDeletedErrorModel>>("DELETE", path, null);
         }
 
 
@@ -6656,13 +6656,13 @@ public List<ErrorDetail> DeleteItemTag(Int32 companyId, Int64 itemId, Int32 item
         /// Swagger Name: AvaTaxClient
         /// <param name="companyId">The ID of the company that defined these items.</param>
         /// <param name="itemId">The ID of the item as defined by the company that owns this tag.</param>
-        public List<ErrorDetail> DeleteItemTags(Int32 companyId, Int64 itemId)
+        public List<AssociatedObjectDeletedErrorDetailsModel> DeleteItemTags(Int32 companyId, Int64 itemId)
         {
             var path = new AvaTaxPath("/api/v2/companies/{companyId}/items/{itemId}/tags");
             path.ApplyField("companyId", companyId);
             path.ApplyField("itemId", itemId);
             _clientHeaders[Constants.AVALARA_CLIENT_HEADER]=string.Format(ClientID, API_VERSION);
-            return RestCall<List<ErrorDetail>>("DELETE", path, null);
+            return RestCall<List<AssociatedObjectDeletedErrorDetailsModel>>("DELETE", path, null);
         }
 
 
@@ -6801,13 +6801,13 @@ public FetchResult<ItemTagDetailOutputModel> GetItemTags(Int32 companyId, Int64
         /// Swagger Name: AvaTaxClient
         /// <param name="companyId"></param>
         /// <param name="itemId"></param>
-        public TaxCodeRecommendationsOutputModel GetItemTaxCodeRecommendations(Int32 companyId, Int64 itemId)
+        public List<TaxCodeRecommendationOutputModel> GetItemTaxCodeRecommendations(Int32 companyId, Int64 itemId)
         {
             var path = new AvaTaxPath("/api/v2/companies/{companyId}/items/{itemId}/taxcoderecommendations");
             path.ApplyField("companyId", companyId);
             path.ApplyField("itemId", itemId);
             _clientHeaders[Constants.AVALARA_CLIENT_HEADER]=string.Format(ClientID, API_VERSION);
-            return RestCall<TaxCodeRecommendationsOutputModel>("GET", path, null);
+            return RestCall<List<TaxCodeRecommendationOutputModel>>("GET", path, null);
         }
 
 
@@ -6991,6 +6991,7 @@ public FetchResult<ItemParameterModel> ListItemParameters(Int32 companyId, Int64
         /// * Classifications
         /// * Tags
         /// * Properties
+        /// * TaxCodeRecommendationStatus
         /// 
         /// ### Security Policies
         /// 
@@ -6998,7 +6999,7 @@ public FetchResult<ItemParameterModel> ListItemParameters(Int32 companyId, Int64
         /// </remarks>
         /// Swagger Name: AvaTaxClient
         /// <param name="companyId">The ID of the company that defined these items</param>
-        /// <param name="filter">A filter statement to identify specific records to retrieve. For more information on filtering, see [Filtering in REST](http://developer.avalara.com/avatax/filtering-in-rest/).<br />*Not filterable:* taxCode, source, sourceEntityId, itemType, upc, summary, classifications, parameters, tags, properties, itemStatus, taxCodeRecommendationStatus</param>
+        /// <param name="filter">A filter statement to identify specific records to retrieve. For more information on filtering, see [Filtering in REST](http://developer.avalara.com/avatax/filtering-in-rest/).<br />*Not filterable:* taxCode, source, sourceEntityId, itemType, upc, summary, classifications, parameters, tags, properties, itemStatus, taxCodeRecommendationStatus, taxCodeRecommendations</param>
         /// <param name="include">A comma separated list of additional data to retrieve.</param>
         /// <param name="top">If nonzero, return no more than this number of results. Used with `$skip` to provide pagination for large datasets. Unless otherwise specified, the maximum number of records that can be returned from an API call is 1,000 records.</param>
         /// <param name="skip">If nonzero, skip this number of results before returning data. Used with `$top` to provide pagination for large datasets.</param>
@@ -7044,7 +7045,7 @@ public FetchResult<ItemModel> ListItemsByCompany(Int32 companyId, String filter,
         /// * This API requires one of the following user roles: AccountAdmin, AccountUser, BatchServiceAdmin, CompanyAdmin, CompanyUser, CSPAdmin, CSPTester, SiteAdmin, SSTAdmin, SystemAdmin, TechnicalSupportAdmin, TechnicalSupportUser.
         /// </remarks>
         /// Swagger Name: AvaTaxClient
-        /// <param name="filter">A filter statement to identify specific records to retrieve. For more information on filtering, see [Filtering in REST](http://developer.avalara.com/avatax/filtering-in-rest/).<br />*Not filterable:* taxCode, source, sourceEntityId, itemType, upc, summary, classifications, parameters, tags, properties, itemStatus, taxCodeRecommendationStatus</param>
+        /// <param name="filter">A filter statement to identify specific records to retrieve. For more information on filtering, see [Filtering in REST](http://developer.avalara.com/avatax/filtering-in-rest/).<br />*Not filterable:* taxCode, source, sourceEntityId, itemType, upc, summary, classifications, parameters, tags, properties, itemStatus, taxCodeRecommendationStatus, taxCodeRecommendations</param>
         /// <param name="include">A comma separated list of additional data to retrieve.</param>
         /// <param name="top">If nonzero, return no more than this number of results. Used with `$skip` to provide pagination for large datasets. Unless otherwise specified, the maximum number of records that can be returned from an API call is 1,000 records.</param>
         /// <param name="skip">If nonzero, skip this number of results before returning data. Used with `$top` to provide pagination for large datasets.</param>
@@ -7125,7 +7126,7 @@ public FetchResult<ItemModel> QueryItemsBySystemCode(Int32 companyId, String sys
         /// Swagger Name: AvaTaxClient
         /// <param name="companyId">The ID of the company that defined these items.</param>
         /// <param name="tag">The master tag to be associated with item.</param>
-        /// <param name="filter">A filter statement to identify specific records to retrieve. For more information on filtering, see [Filtering in REST](http://developer.avalara.com/avatax/filtering-in-rest/).<br />*Not filterable:* taxCode, source, sourceEntityId, itemType, upc, summary, classifications, parameters, tags, properties, itemStatus, taxCodeRecommendationStatus</param>
+        /// <param name="filter">A filter statement to identify specific records to retrieve. For more information on filtering, see [Filtering in REST](http://developer.avalara.com/avatax/filtering-in-rest/).<br />*Not filterable:* taxCode, source, sourceEntityId, itemType, upc, summary, classifications, parameters, tags, properties, itemStatus, taxCodeRecommendationStatus, taxCodeRecommendations</param>
         /// <param name="include">A comma separated list of additional data to retrieve.</param>
         /// <param name="top">If nonzero, return no more than this number of results. Used with `$skip` to provide pagination for large datasets. Unless otherwise specified, the maximum number of records that can be returned from an API call is 1,000 records.</param>
         /// <param name="skip">If nonzero, skip this number of results before returning data. Used with `$top` to provide pagination for large datasets.</param>
@@ -7230,12 +7231,14 @@ public SyncItemsResponseModel SyncItems(Int32 companyId, SyncItemsRequestModel m
         /// Swagger Name: AvaTaxClient
         /// <param name="companyId">The ID of the company that this item belongs to.</param>
         /// <param name="id">The ID of the item you wish to update</param>
+        /// <param name="isRecommendationSelected">If true then Set recommendation status to RecommendationSelected</param>
         /// <param name="model">The item object you wish to update.</param>
-        public ItemModel UpdateItem(Int32 companyId, Int64 id, ItemModel model)
+        public ItemModel UpdateItem(Int32 companyId, Int64 id, Boolean? isRecommendationSelected, ItemModel model)
         {
             var path = new AvaTaxPath("/api/v2/companies/{companyId}/items/{id}");
             path.ApplyField("companyId", companyId);
             path.ApplyField("id", id);
+            path.AddQuery("isRecommendationSelected", isRecommendationSelected);
             _clientHeaders[Constants.AVALARA_CLIENT_HEADER]=string.Format(ClientID, API_VERSION);
             return RestCall<ItemModel>("PUT", path, model);
         }
@@ -14188,7 +14191,7 @@ public async Task<FetchResult<CustomerModel>> ListCustomersForCertificateAsync(I
         ///  * customers - Retrieves the list of customers linked to the certificate.
         ///  * po_numbers - Retrieves all PO numbers tied to the certificate.
         ///  * attributes - Retrieves all attributes applied to the certificate.</param>
-        /// <param name="filter">A filter statement to identify specific records to retrieve. For more information on filtering, see [Filtering in REST](http://developer.avalara.com/avatax/filtering-in-rest/).<br />*Not filterable:* exemptionNumber, status, ecmsId, ecmsStatus, pdf, pages</param>
+        /// <param name="filter">A filter statement to identify specific records to retrieve. For more information on filtering, see [Filtering in REST](http://developer.avalara.com/avatax/filtering-in-rest/).<br />*Not filterable:* exemptionNumber, status, ecmStatus, ecmsId, ecmsStatus, pdf, pages</param>
         /// <param name="top">If nonzero, return no more than this number of results. Used with `$skip` to provide pagination for large datasets. Unless otherwise specified, the maximum number of records that can be returned from an API call is 1,000 records.</param>
         /// <param name="skip">If nonzero, skip this number of results before returning data. Used with `$top` to provide pagination for large datasets.</param>
         /// <param name="orderBy">A comma separated list of sort statements in the format `(fieldname) [ASC|DESC]`, for example `id ASC`.</param>
@@ -15889,7 +15892,7 @@ public async Task<FetchResult<CustomerAttributeModel>> ListAttributesForCustomer
         ///  * customers - Retrieves the list of customers linked to the certificate.
         ///  * po_numbers - Retrieves all PO numbers tied to the certificate.
         ///  * attributes - Retrieves all attributes applied to the certificate.</param>
-        /// <param name="filter">A filter statement to identify specific records to retrieve. For more information on filtering, see [Filtering in REST](http://developer.avalara.com/avatax/filtering-in-rest/).<br />*Not filterable:* exemptionNumber, status, ecmsId, ecmsStatus, pdf, pages</param>
+        /// <param name="filter">A filter statement to identify specific records to retrieve. For more information on filtering, see [Filtering in REST](http://developer.avalara.com/avatax/filtering-in-rest/).<br />*Not filterable:* exemptionNumber, status, ecmStatus, ecmsId, ecmsStatus, pdf, pages</param>
         /// <param name="top">If nonzero, return no more than this number of results. Used with `$skip` to provide pagination for large datasets. Unless otherwise specified, the maximum number of records that can be returned from an API call is 1,000 records.</param>
         /// <param name="skip">If nonzero, skip this number of results before returning data. Used with `$top` to provide pagination for large datasets.</param>
         /// <param name="orderBy">A comma separated list of sort statements in the format `(fieldname) [ASC|DESC]`, for example `id ASC`.</param>
@@ -15982,7 +15985,7 @@ public async Task<ExemptionStatusModel> ListValidCertificatesForCustomerAsync(In
 		
         /// <param name="companyId">The unique ID number of the company that recorded this customer</param>
         /// <param name="include">OPTIONAL - You can specify the value `certificates` to fetch information about certificates linked to the customer.</param>
-        /// <param name="filter">A filter statement to identify specific records to retrieve. For more information on filtering, see [Filtering in REST](http://developer.avalara.com/avatax/filtering-in-rest/).<br />*Not filterable:* shipTos</param>
+        /// <param name="filter">A filter statement to identify specific records to retrieve. For more information on filtering, see [Filtering in REST](http://developer.avalara.com/avatax/filtering-in-rest/).</param>
         /// <param name="top">If nonzero, return no more than this number of results. Used with `$skip` to provide pagination for large datasets. Unless otherwise specified, the maximum number of records that can be returned from an API call is 1,000 records.</param>
         /// <param name="skip">If nonzero, skip this number of results before returning data. Used with `$top` to provide pagination for large datasets.</param>
         /// <param name="orderBy">A comma separated list of sort statements in the format `(fieldname) [ASC|DESC]`, for example `id ASC`.</param>
@@ -19123,13 +19126,13 @@ public async Task<GLAccountSuccessResponseModel> UpdateGLAccountAsync(Int32 comp
 		
         /// <param name="companyId">The ID of the company that owns this item.</param>
         /// <param name="itemId">The ID of the item you wish to delete the classifications.</param>
-        public async Task<List<ErrorDetail>> BatchDeleteItemClassificationsAsync(Int32 companyId, Int64 itemId)
+        public async Task<List<AssociatedObjectDeletedErrorDetailsModel>> BatchDeleteItemClassificationsAsync(Int32 companyId, Int64 itemId)
         {
             var path = new AvaTaxPath("/api/v2/companies/{companyId}/items/{itemId}/classifications");
             path.ApplyField("companyId", companyId);
             path.ApplyField("itemId", itemId);
             _clientHeaders[Constants.AVALARA_CLIENT_HEADER]=string.Format(ClientID , API_VERSION);
-            return await RestCallAsync<List<ErrorDetail>>("DELETE", path, null).ConfigureAwait(false);
+            return await RestCallAsync<List<AssociatedObjectDeletedErrorDetailsModel>>("DELETE", path, null).ConfigureAwait(false);
         }
 
 
@@ -19153,13 +19156,13 @@ public async Task<List<ErrorDetail>> BatchDeleteItemClassificationsAsync(Int32 c
 		
         /// <param name="companyId">The ID of the company that owns this item.</param>
         /// <param name="itemId">The ID of the item you wish to delete the parameters.</param>
-        public async Task<List<ErrorDetail>> BatchDeleteItemParametersAsync(Int32 companyId, Int64 itemId)
+        public async Task<List<AssociatedObjectDeletedErrorDetailsModel>> BatchDeleteItemParametersAsync(Int32 companyId, Int64 itemId)
         {
             var path = new AvaTaxPath("/api/v2/companies/{companyId}/items/{itemId}/parameters");
             path.ApplyField("companyId", companyId);
             path.ApplyField("itemId", itemId);
             _clientHeaders[Constants.AVALARA_CLIENT_HEADER]=string.Format(ClientID , API_VERSION);
-            return await RestCallAsync<List<ErrorDetail>>("DELETE", path, null).ConfigureAwait(false);
+            return await RestCallAsync<List<AssociatedObjectDeletedErrorDetailsModel>>("DELETE", path, null).ConfigureAwait(false);
         }
 
 
@@ -19375,13 +19378,13 @@ public async Task<ItemTaxCodeClassificationRequestOutputModel> CreateTaxCodeClas
 		
         /// <param name="companyId">The ID of the company that owns this item.</param>
         /// <param name="itemCode">The code of the item you want to delete.</param>
-        public async Task<List<ErrorDetail>> DeleteCatalogueItemAsync(Int32 companyId, String itemCode)
+        public async Task<List<ObjectDeletedErrorModel>> DeleteCatalogueItemAsync(Int32 companyId, String itemCode)
         {
             var path = new AvaTaxPath("/api/v2/companies/{companyId}/itemcatalogue/{itemCode}");
             path.ApplyField("companyId", companyId);
             path.ApplyField("itemCode", itemCode);
             _clientHeaders[Constants.AVALARA_CLIENT_HEADER]=string.Format(ClientID , API_VERSION);
-            return await RestCallAsync<List<ErrorDetail>>("DELETE", path, null).ConfigureAwait(false);
+            return await RestCallAsync<List<ObjectDeletedErrorModel>>("DELETE", path, null).ConfigureAwait(false);
         }
 
 
@@ -19407,13 +19410,13 @@ public async Task<List<ErrorDetail>> DeleteCatalogueItemAsync(Int32 companyId, S
 		
         /// <param name="companyId">The ID of the company that owns this item.</param>
         /// <param name="id">The ID of the item you wish to delete.</param>
-        public async Task<List<ErrorDetail>> DeleteItemAsync(Int32 companyId, Int64 id)
+        public async Task<List<ObjectDeletedErrorModel>> DeleteItemAsync(Int32 companyId, Int64 id)
         {
             var path = new AvaTaxPath("/api/v2/companies/{companyId}/items/{id}");
             path.ApplyField("companyId", companyId);
             path.ApplyField("id", id);
             _clientHeaders[Constants.AVALARA_CLIENT_HEADER]=string.Format(ClientID , API_VERSION);
-            return await RestCallAsync<List<ErrorDetail>>("DELETE", path, null).ConfigureAwait(false);
+            return await RestCallAsync<List<ObjectDeletedErrorModel>>("DELETE", path, null).ConfigureAwait(false);
         }
 
 
@@ -19436,14 +19439,14 @@ public async Task<List<ErrorDetail>> DeleteItemAsync(Int32 companyId, Int64 id)
         /// <param name="companyId">The company id.</param>
         /// <param name="itemId">The item id.</param>
         /// <param name="id">The item classification id.</param>
-        public async Task<List<ErrorDetail>> DeleteItemClassificationAsync(Int32 companyId, Int64 itemId, Int64 id)
+        public async Task<List<ObjectDeletedErrorModel>> DeleteItemClassificationAsync(Int32 companyId, Int64 itemId, Int64 id)
         {
             var path = new AvaTaxPath("/api/v2/companies/{companyId}/items/{itemId}/classifications/{id}");
             path.ApplyField("companyId", companyId);
             path.ApplyField("itemId", itemId);
             path.ApplyField("id", id);
             _clientHeaders[Constants.AVALARA_CLIENT_HEADER]=string.Format(ClientID , API_VERSION);
-            return await RestCallAsync<List<ErrorDetail>>("DELETE", path, null).ConfigureAwait(false);
+            return await RestCallAsync<List<ObjectDeletedErrorModel>>("DELETE", path, null).ConfigureAwait(false);
         }
 
 
@@ -19468,14 +19471,14 @@ public async Task<List<ErrorDetail>> DeleteItemClassificationAsync(Int32 company
         /// <param name="companyId">The company id</param>
         /// <param name="itemId">The item id</param>
         /// <param name="id">The parameter id</param>
-        public async Task<List<ErrorDetail>> DeleteItemParameterAsync(Int32 companyId, Int64 itemId, Int64 id)
+        public async Task<List<ObjectDeletedErrorModel>> DeleteItemParameterAsync(Int32 companyId, Int64 itemId, Int64 id)
         {
             var path = new AvaTaxPath("/api/v2/companies/{companyId}/items/{itemId}/parameters/{id}");
             path.ApplyField("companyId", companyId);
             path.ApplyField("itemId", itemId);
             path.ApplyField("id", id);
             _clientHeaders[Constants.AVALARA_CLIENT_HEADER]=string.Format(ClientID , API_VERSION);
-            return await RestCallAsync<List<ErrorDetail>>("DELETE", path, null).ConfigureAwait(false);
+            return await RestCallAsync<List<ObjectDeletedErrorModel>>("DELETE", path, null).ConfigureAwait(false);
         }
 
 
@@ -19496,14 +19499,14 @@ public async Task<List<ErrorDetail>> DeleteItemParameterAsync(Int32 companyId, I
         /// <param name="companyId">The ID of the company that defined these items</param>
         /// <param name="itemId">The ID of the item as defined by the company that owns this tag.</param>
         /// <param name="itemTagDetailId">The ID of the item tag detail you wish to delete.</param>
-        public async Task<List<ErrorDetail>> DeleteItemTagAsync(Int32 companyId, Int64 itemId, Int32 itemTagDetailId)
+        public async Task<List<ObjectDeletedErrorModel>> DeleteItemTagAsync(Int32 companyId, Int64 itemId, Int32 itemTagDetailId)
         {
             var path = new AvaTaxPath("/api/v2/companies/{companyId}/items/{itemId}/tags/{itemTagDetailId}");
             path.ApplyField("companyId", companyId);
             path.ApplyField("itemId", itemId);
             path.ApplyField("itemTagDetailId", itemTagDetailId);
             _clientHeaders[Constants.AVALARA_CLIENT_HEADER]=string.Format(ClientID , API_VERSION);
-            return await RestCallAsync<List<ErrorDetail>>("DELETE", path, null).ConfigureAwait(false);
+            return await RestCallAsync<List<ObjectDeletedErrorModel>>("DELETE", path, null).ConfigureAwait(false);
         }
 
 
@@ -19523,13 +19526,13 @@ public async Task<List<ErrorDetail>> DeleteItemTagAsync(Int32 companyId, Int64 i
 		
         /// <param name="companyId">The ID of the company that defined these items.</param>
         /// <param name="itemId">The ID of the item as defined by the company that owns this tag.</param>
-        public async Task<List<ErrorDetail>> DeleteItemTagsAsync(Int32 companyId, Int64 itemId)
+        public async Task<List<AssociatedObjectDeletedErrorDetailsModel>> DeleteItemTagsAsync(Int32 companyId, Int64 itemId)
         {
             var path = new AvaTaxPath("/api/v2/companies/{companyId}/items/{itemId}/tags");
             path.ApplyField("companyId", companyId);
             path.ApplyField("itemId", itemId);
             _clientHeaders[Constants.AVALARA_CLIENT_HEADER]=string.Format(ClientID , API_VERSION);
-            return await RestCallAsync<List<ErrorDetail>>("DELETE", path, null).ConfigureAwait(false);
+            return await RestCallAsync<List<AssociatedObjectDeletedErrorDetailsModel>>("DELETE", path, null).ConfigureAwait(false);
         }
 
 
@@ -19673,13 +19676,13 @@ public async Task<FetchResult<ItemTagDetailOutputModel>> GetItemTagsAsync(Int32
 		
         /// <param name="companyId"></param>
         /// <param name="itemId"></param>
-        public async Task<TaxCodeRecommendationsOutputModel> GetItemTaxCodeRecommendationsAsync(Int32 companyId, Int64 itemId)
+        public async Task<List<TaxCodeRecommendationOutputModel>> GetItemTaxCodeRecommendationsAsync(Int32 companyId, Int64 itemId)
         {
             var path = new AvaTaxPath("/api/v2/companies/{companyId}/items/{itemId}/taxcoderecommendations");
             path.ApplyField("companyId", companyId);
             path.ApplyField("itemId", itemId);
             _clientHeaders[Constants.AVALARA_CLIENT_HEADER]=string.Format(ClientID , API_VERSION);
-            return await RestCallAsync<TaxCodeRecommendationsOutputModel>("GET", path, null).ConfigureAwait(false);
+            return await RestCallAsync<List<TaxCodeRecommendationOutputModel>>("GET", path, null).ConfigureAwait(false);
         }
 
 
@@ -19868,6 +19871,7 @@ public async Task<FetchResult<ItemParameterModel>> ListItemParametersAsync(Int32
         /// * Classifications
         /// * Tags
         /// * Properties
+        /// * TaxCodeRecommendationStatus
         /// 
         /// ### Security Policies
         /// 
@@ -19875,7 +19879,7 @@ public async Task<FetchResult<ItemParameterModel>> ListItemParametersAsync(Int32
         /// </remarks>
 		
         /// <param name="companyId">The ID of the company that defined these items</param>
-        /// <param name="filter">A filter statement to identify specific records to retrieve. For more information on filtering, see [Filtering in REST](http://developer.avalara.com/avatax/filtering-in-rest/).<br />*Not filterable:* taxCode, source, sourceEntityId, itemType, upc, summary, classifications, parameters, tags, properties, itemStatus, taxCodeRecommendationStatus</param>
+        /// <param name="filter">A filter statement to identify specific records to retrieve. For more information on filtering, see [Filtering in REST](http://developer.avalara.com/avatax/filtering-in-rest/).<br />*Not filterable:* taxCode, source, sourceEntityId, itemType, upc, summary, classifications, parameters, tags, properties, itemStatus, taxCodeRecommendationStatus, taxCodeRecommendations</param>
         /// <param name="include">A comma separated list of additional data to retrieve.</param>
         /// <param name="top">If nonzero, return no more than this number of results. Used with `$skip` to provide pagination for large datasets. Unless otherwise specified, the maximum number of records that can be returned from an API call is 1,000 records.</param>
         /// <param name="skip">If nonzero, skip this number of results before returning data. Used with `$top` to provide pagination for large datasets.</param>
@@ -19922,7 +19926,7 @@ public async Task<FetchResult<ItemModel>> ListItemsByCompanyAsync(Int32 companyI
         /// * This API requires one of the following user roles: AccountAdmin, AccountUser, BatchServiceAdmin, CompanyAdmin, CompanyUser, CSPAdmin, CSPTester, SiteAdmin, SSTAdmin, SystemAdmin, TechnicalSupportAdmin, TechnicalSupportUser.;
         /// </remarks>
 		
-        /// <param name="filter">A filter statement to identify specific records to retrieve. For more information on filtering, see [Filtering in REST](http://developer.avalara.com/avatax/filtering-in-rest/).<br />*Not filterable:* taxCode, source, sourceEntityId, itemType, upc, summary, classifications, parameters, tags, properties, itemStatus, taxCodeRecommendationStatus</param>
+        /// <param name="filter">A filter statement to identify specific records to retrieve. For more information on filtering, see [Filtering in REST](http://developer.avalara.com/avatax/filtering-in-rest/).<br />*Not filterable:* taxCode, source, sourceEntityId, itemType, upc, summary, classifications, parameters, tags, properties, itemStatus, taxCodeRecommendationStatus, taxCodeRecommendations</param>
         /// <param name="include">A comma separated list of additional data to retrieve.</param>
         /// <param name="top">If nonzero, return no more than this number of results. Used with `$skip` to provide pagination for large datasets. Unless otherwise specified, the maximum number of records that can be returned from an API call is 1,000 records.</param>
         /// <param name="skip">If nonzero, skip this number of results before returning data. Used with `$top` to provide pagination for large datasets.</param>
@@ -20005,7 +20009,7 @@ public async Task<FetchResult<ItemModel>> QueryItemsBySystemCodeAsync(Int32 comp
 		
         /// <param name="companyId">The ID of the company that defined these items.</param>
         /// <param name="tag">The master tag to be associated with item.</param>
-        /// <param name="filter">A filter statement to identify specific records to retrieve. For more information on filtering, see [Filtering in REST](http://developer.avalara.com/avatax/filtering-in-rest/).<br />*Not filterable:* taxCode, source, sourceEntityId, itemType, upc, summary, classifications, parameters, tags, properties, itemStatus, taxCodeRecommendationStatus</param>
+        /// <param name="filter">A filter statement to identify specific records to retrieve. For more information on filtering, see [Filtering in REST](http://developer.avalara.com/avatax/filtering-in-rest/).<br />*Not filterable:* taxCode, source, sourceEntityId, itemType, upc, summary, classifications, parameters, tags, properties, itemStatus, taxCodeRecommendationStatus, taxCodeRecommendations</param>
         /// <param name="include">A comma separated list of additional data to retrieve.</param>
         /// <param name="top">If nonzero, return no more than this number of results. Used with `$skip` to provide pagination for large datasets. Unless otherwise specified, the maximum number of records that can be returned from an API call is 1,000 records.</param>
         /// <param name="skip">If nonzero, skip this number of results before returning data. Used with `$top` to provide pagination for large datasets.</param>
@@ -20113,12 +20117,14 @@ public async Task<SyncItemsResponseModel> SyncItemsAsync(Int32 companyId, SyncIt
 		
         /// <param name="companyId">The ID of the company that this item belongs to.</param>
         /// <param name="id">The ID of the item you wish to update</param>
+        /// <param name="isRecommendationSelected">If true then Set recommendation status to RecommendationSelected</param>
         /// <param name="model">The item object you wish to update.</param>
-        public async Task<ItemModel> UpdateItemAsync(Int32 companyId, Int64 id, ItemModel model)
+        public async Task<ItemModel> UpdateItemAsync(Int32 companyId, Int64 id, Boolean? isRecommendationSelected, ItemModel model)
         {
             var path = new AvaTaxPath("/api/v2/companies/{companyId}/items/{id}");
             path.ApplyField("companyId", companyId);
             path.ApplyField("id", id);
+            path.AddQuery("isRecommendationSelected", isRecommendationSelected);
             _clientHeaders[Constants.AVALARA_CLIENT_HEADER]=string.Format(ClientID , API_VERSION);
             return await RestCallAsync<ItemModel>("PUT", path, model).ConfigureAwait(false);
         }
diff --git a/src/Avalara.AvaTax.RestClient.nuspec b/src/Avalara.AvaTax.RestClient.nuspec
index f0827d0..7cb0d81 100644
--- a/src/Avalara.AvaTax.RestClient.nuspec
+++ b/src/Avalara.AvaTax.RestClient.nuspec
@@ -3,7 +3,7 @@
     <metadata>
         <id>Avalara.AvaTax</id>
 
-        <version>24.6.1</version>
+        <version>24.6.3</version>
         
         <title>Avalara AvaTax SDK</title>
         <description>Add world-class tax estimation and calculation to your project with Avalara's AvaTax suite of APIs and services.</description>
diff --git a/src/IAvaTaxClient.cs b/src/IAvaTaxClient.cs
index 44c54d6..73b1d91 100644
--- a/src/IAvaTaxClient.cs
+++ b/src/IAvaTaxClient.cs
@@ -1181,7 +1181,7 @@ public interface IAvaTaxClient
         ///  * customers - Retrieves the list of customers linked to the certificate.
         ///  * po_numbers - Retrieves all PO numbers tied to the certificate.
         ///  * attributes - Retrieves all attributes applied to the certificate.</param>
-        /// <param name="filter">A filter statement to identify specific records to retrieve. For more information on filtering, see [Filtering in REST](http://developer.avalara.com/avatax/filtering-in-rest/).<br />*Not filterable:* exemptionNumber, status, ecmsId, ecmsStatus, pdf, pages</param>
+        /// <param name="filter">A filter statement to identify specific records to retrieve. For more information on filtering, see [Filtering in REST](http://developer.avalara.com/avatax/filtering-in-rest/).<br />*Not filterable:* exemptionNumber, status, ecmStatus, ecmsId, ecmsStatus, pdf, pages</param>
         /// <param name="top">If nonzero, return no more than this number of results. Used with `$skip` to provide pagination for large datasets. Unless otherwise specified, the maximum number of records that can be returned from an API call is 1,000 records.</param>
         /// <param name="skip">If nonzero, skip this number of results before returning data. Used with `$top` to provide pagination for large datasets.</param>
         /// <param name="orderBy">A comma separated list of sort statements in the format `(fieldname) [ASC|DESC]`, for example `id ASC`.</param>
@@ -2378,7 +2378,7 @@ public interface IAvaTaxClient
         ///  * customers - Retrieves the list of customers linked to the certificate.
         ///  * po_numbers - Retrieves all PO numbers tied to the certificate.
         ///  * attributes - Retrieves all attributes applied to the certificate.</param>
-        /// <param name="filter">A filter statement to identify specific records to retrieve. For more information on filtering, see [Filtering in REST](http://developer.avalara.com/avatax/filtering-in-rest/).<br />*Not filterable:* exemptionNumber, status, ecmsId, ecmsStatus, pdf, pages</param>
+        /// <param name="filter">A filter statement to identify specific records to retrieve. For more information on filtering, see [Filtering in REST](http://developer.avalara.com/avatax/filtering-in-rest/).<br />*Not filterable:* exemptionNumber, status, ecmStatus, ecmsId, ecmsStatus, pdf, pages</param>
         /// <param name="top">If nonzero, return no more than this number of results. Used with `$skip` to provide pagination for large datasets. Unless otherwise specified, the maximum number of records that can be returned from an API call is 1,000 records.</param>
         /// <param name="skip">If nonzero, skip this number of results before returning data. Used with `$top` to provide pagination for large datasets.</param>
         /// <param name="orderBy">A comma separated list of sort statements in the format `(fieldname) [ASC|DESC]`, for example `id ASC`.</param>
@@ -2446,7 +2446,7 @@ public interface IAvaTaxClient
         /// Swagger Name: AvaTaxClient
         /// <param name="companyId">The unique ID number of the company that recorded this customer</param>
         /// <param name="include">OPTIONAL - You can specify the value `certificates` to fetch information about certificates linked to the customer.</param>
-        /// <param name="filter">A filter statement to identify specific records to retrieve. For more information on filtering, see [Filtering in REST](http://developer.avalara.com/avatax/filtering-in-rest/).<br />*Not filterable:* shipTos</param>
+        /// <param name="filter">A filter statement to identify specific records to retrieve. For more information on filtering, see [Filtering in REST](http://developer.avalara.com/avatax/filtering-in-rest/).</param>
         /// <param name="top">If nonzero, return no more than this number of results. Used with `$skip` to provide pagination for large datasets. Unless otherwise specified, the maximum number of records that can be returned from an API call is 1,000 records.</param>
         /// <param name="skip">If nonzero, skip this number of results before returning data. Used with `$top` to provide pagination for large datasets.</param>
         /// <param name="orderBy">A comma separated list of sort statements in the format `(fieldname) [ASC|DESC]`, for example `id ASC`.</param>
@@ -4377,7 +4377,7 @@ public interface IAvaTaxClient
         /// Swagger Name: AvaTaxClient
         /// <param name="companyId">The ID of the company that owns this item.</param>
         /// <param name="itemId">The ID of the item you wish to delete the classifications.</param>
-        List<ErrorDetail> BatchDeleteItemClassifications(Int32 companyId, Int64 itemId);
+        List<AssociatedObjectDeletedErrorDetailsModel> BatchDeleteItemClassifications(Int32 companyId, Int64 itemId);
 
         /// <summary>
         /// Delete all parameters for an item
@@ -4398,7 +4398,7 @@ public interface IAvaTaxClient
         /// Swagger Name: AvaTaxClient
         /// <param name="companyId">The ID of the company that owns this item.</param>
         /// <param name="itemId">The ID of the item you wish to delete the parameters.</param>
-        List<ErrorDetail> BatchDeleteItemParameters(Int32 companyId, Int64 itemId);
+        List<AssociatedObjectDeletedErrorDetailsModel> BatchDeleteItemParameters(Int32 companyId, Int64 itemId);
 
         /// <summary>
         /// Bulk upload items from a product catalog
@@ -4559,7 +4559,7 @@ public interface IAvaTaxClient
         /// Swagger Name: AvaTaxClient
         /// <param name="companyId">The ID of the company that owns this item.</param>
         /// <param name="itemCode">The code of the item you want to delete.</param>
-        List<ErrorDetail> DeleteCatalogueItem(Int32 companyId, String itemCode);
+        List<ObjectDeletedErrorModel> DeleteCatalogueItem(Int32 companyId, String itemCode);
 
         /// <summary>
         /// Delete a single item
@@ -4582,7 +4582,7 @@ public interface IAvaTaxClient
         /// Swagger Name: AvaTaxClient
         /// <param name="companyId">The ID of the company that owns this item.</param>
         /// <param name="id">The ID of the item you wish to delete.</param>
-        List<ErrorDetail> DeleteItem(Int32 companyId, Int64 id);
+        List<ObjectDeletedErrorModel> DeleteItem(Int32 companyId, Int64 id);
 
         /// <summary>
         /// Delete a single item classification.
@@ -4602,7 +4602,7 @@ public interface IAvaTaxClient
         /// <param name="companyId">The company id.</param>
         /// <param name="itemId">The item id.</param>
         /// <param name="id">The item classification id.</param>
-        List<ErrorDetail> DeleteItemClassification(Int32 companyId, Int64 itemId, Int64 id);
+        List<ObjectDeletedErrorModel> DeleteItemClassification(Int32 companyId, Int64 itemId, Int64 id);
 
         /// <summary>
         /// Delete a single item parameter
@@ -4624,7 +4624,7 @@ public interface IAvaTaxClient
         /// <param name="companyId">The company id</param>
         /// <param name="itemId">The item id</param>
         /// <param name="id">The parameter id</param>
-        List<ErrorDetail> DeleteItemParameter(Int32 companyId, Int64 itemId, Int64 id);
+        List<ObjectDeletedErrorModel> DeleteItemParameter(Int32 companyId, Int64 itemId, Int64 id);
 
         /// <summary>
         /// Delete item tag by id
@@ -4642,7 +4642,7 @@ public interface IAvaTaxClient
         /// <param name="companyId">The ID of the company that defined these items</param>
         /// <param name="itemId">The ID of the item as defined by the company that owns this tag.</param>
         /// <param name="itemTagDetailId">The ID of the item tag detail you wish to delete.</param>
-        List<ErrorDetail> DeleteItemTag(Int32 companyId, Int64 itemId, Int32 itemTagDetailId);
+        List<ObjectDeletedErrorModel> DeleteItemTag(Int32 companyId, Int64 itemId, Int32 itemTagDetailId);
 
         /// <summary>
         /// Delete all item tags
@@ -4659,7 +4659,7 @@ public interface IAvaTaxClient
         /// Swagger Name: AvaTaxClient
         /// <param name="companyId">The ID of the company that defined these items.</param>
         /// <param name="itemId">The ID of the item as defined by the company that owns this tag.</param>
-        List<ErrorDetail> DeleteItemTags(Int32 companyId, Int64 itemId);
+        List<AssociatedObjectDeletedErrorDetailsModel> DeleteItemTags(Int32 companyId, Int64 itemId);
 
         /// <summary>
         /// Retrieve a single item
@@ -4758,7 +4758,7 @@ public interface IAvaTaxClient
         /// Swagger Name: AvaTaxClient
         /// <param name="companyId"></param>
         /// <param name="itemId"></param>
-        TaxCodeRecommendationsOutputModel GetItemTaxCodeRecommendations(Int32 companyId, Int64 itemId);
+        List<TaxCodeRecommendationOutputModel> GetItemTaxCodeRecommendations(Int32 companyId, Int64 itemId);
 
         /// <summary>
         /// Retrieve premium classification for a company's item based on its ItemCode and SystemCode.
@@ -4895,6 +4895,7 @@ public interface IAvaTaxClient
         /// * Classifications
         /// * Tags
         /// * Properties
+        /// * TaxCodeRecommendationStatus
         /// 
         /// ### Security Policies
         /// 
@@ -4902,7 +4903,7 @@ public interface IAvaTaxClient
         /// </remarks>
         /// Swagger Name: AvaTaxClient
         /// <param name="companyId">The ID of the company that defined these items</param>
-        /// <param name="filter">A filter statement to identify specific records to retrieve. For more information on filtering, see [Filtering in REST](http://developer.avalara.com/avatax/filtering-in-rest/).<br />*Not filterable:* taxCode, source, sourceEntityId, itemType, upc, summary, classifications, parameters, tags, properties, itemStatus, taxCodeRecommendationStatus</param>
+        /// <param name="filter">A filter statement to identify specific records to retrieve. For more information on filtering, see [Filtering in REST](http://developer.avalara.com/avatax/filtering-in-rest/).<br />*Not filterable:* taxCode, source, sourceEntityId, itemType, upc, summary, classifications, parameters, tags, properties, itemStatus, taxCodeRecommendationStatus, taxCodeRecommendations</param>
         /// <param name="include">A comma separated list of additional data to retrieve.</param>
         /// <param name="top">If nonzero, return no more than this number of results. Used with `$skip` to provide pagination for large datasets. Unless otherwise specified, the maximum number of records that can be returned from an API call is 1,000 records.</param>
         /// <param name="skip">If nonzero, skip this number of results before returning data. Used with `$top` to provide pagination for large datasets.</param>
@@ -4933,7 +4934,7 @@ public interface IAvaTaxClient
         /// * This API requires one of the following user roles: AccountAdmin, AccountUser, BatchServiceAdmin, CompanyAdmin, CompanyUser, CSPAdmin, CSPTester, SiteAdmin, SSTAdmin, SystemAdmin, TechnicalSupportAdmin, TechnicalSupportUser.
         /// </remarks>
         /// Swagger Name: AvaTaxClient
-        /// <param name="filter">A filter statement to identify specific records to retrieve. For more information on filtering, see [Filtering in REST](http://developer.avalara.com/avatax/filtering-in-rest/).<br />*Not filterable:* taxCode, source, sourceEntityId, itemType, upc, summary, classifications, parameters, tags, properties, itemStatus, taxCodeRecommendationStatus</param>
+        /// <param name="filter">A filter statement to identify specific records to retrieve. For more information on filtering, see [Filtering in REST](http://developer.avalara.com/avatax/filtering-in-rest/).<br />*Not filterable:* taxCode, source, sourceEntityId, itemType, upc, summary, classifications, parameters, tags, properties, itemStatus, taxCodeRecommendationStatus, taxCodeRecommendations</param>
         /// <param name="include">A comma separated list of additional data to retrieve.</param>
         /// <param name="top">If nonzero, return no more than this number of results. Used with `$skip` to provide pagination for large datasets. Unless otherwise specified, the maximum number of records that can be returned from an API call is 1,000 records.</param>
         /// <param name="skip">If nonzero, skip this number of results before returning data. Used with `$top` to provide pagination for large datasets.</param>
@@ -4992,7 +4993,7 @@ public interface IAvaTaxClient
         /// Swagger Name: AvaTaxClient
         /// <param name="companyId">The ID of the company that defined these items.</param>
         /// <param name="tag">The master tag to be associated with item.</param>
-        /// <param name="filter">A filter statement to identify specific records to retrieve. For more information on filtering, see [Filtering in REST](http://developer.avalara.com/avatax/filtering-in-rest/).<br />*Not filterable:* taxCode, source, sourceEntityId, itemType, upc, summary, classifications, parameters, tags, properties, itemStatus, taxCodeRecommendationStatus</param>
+        /// <param name="filter">A filter statement to identify specific records to retrieve. For more information on filtering, see [Filtering in REST](http://developer.avalara.com/avatax/filtering-in-rest/).<br />*Not filterable:* taxCode, source, sourceEntityId, itemType, upc, summary, classifications, parameters, tags, properties, itemStatus, taxCodeRecommendationStatus, taxCodeRecommendations</param>
         /// <param name="include">A comma separated list of additional data to retrieve.</param>
         /// <param name="top">If nonzero, return no more than this number of results. Used with `$skip` to provide pagination for large datasets. Unless otherwise specified, the maximum number of records that can be returned from an API call is 1,000 records.</param>
         /// <param name="skip">If nonzero, skip this number of results before returning data. Used with `$top` to provide pagination for large datasets.</param>
@@ -5070,8 +5071,9 @@ public interface IAvaTaxClient
         /// Swagger Name: AvaTaxClient
         /// <param name="companyId">The ID of the company that this item belongs to.</param>
         /// <param name="id">The ID of the item you wish to update</param>
+        /// <param name="isRecommendationSelected">If true then Set recommendation status to RecommendationSelected</param>
         /// <param name="model">The item object you wish to update.</param>
-        ItemModel UpdateItem(Int32 companyId, Int64 id, ItemModel model);
+        ItemModel UpdateItem(Int32 companyId, Int64 id, Boolean? isRecommendationSelected, ItemModel model);
 
         /// <summary>
         /// Update an item classification.
@@ -10318,7 +10320,7 @@ public interface IAvaTaxClient
         ///  * customers - Retrieves the list of customers linked to the certificate.
         ///  * po_numbers - Retrieves all PO numbers tied to the certificate.
         ///  * attributes - Retrieves all attributes applied to the certificate.</param>
-        /// <param name="filter">A filter statement to identify specific records to retrieve. For more information on filtering, see [Filtering in REST](http://developer.avalara.com/avatax/filtering-in-rest/).<br />*Not filterable:* exemptionNumber, status, ecmsId, ecmsStatus, pdf, pages</param>
+        /// <param name="filter">A filter statement to identify specific records to retrieve. For more information on filtering, see [Filtering in REST](http://developer.avalara.com/avatax/filtering-in-rest/).<br />*Not filterable:* exemptionNumber, status, ecmStatus, ecmsId, ecmsStatus, pdf, pages</param>
         /// <param name="top">If nonzero, return no more than this number of results. Used with `$skip` to provide pagination for large datasets. Unless otherwise specified, the maximum number of records that can be returned from an API call is 1,000 records.</param>
         /// <param name="skip">If nonzero, skip this number of results before returning data. Used with `$top` to provide pagination for large datasets.</param>
         /// <param name="orderBy">A comma separated list of sort statements in the format `(fieldname) [ASC|DESC]`, for example `id ASC`.</param>
@@ -11568,7 +11570,7 @@ public interface IAvaTaxClient
         ///  * customers - Retrieves the list of customers linked to the certificate.
         ///  * po_numbers - Retrieves all PO numbers tied to the certificate.
         ///  * attributes - Retrieves all attributes applied to the certificate.</param>
-        /// <param name="filter">A filter statement to identify specific records to retrieve. For more information on filtering, see [Filtering in REST](http://developer.avalara.com/avatax/filtering-in-rest/).<br />*Not filterable:* exemptionNumber, status, ecmsId, ecmsStatus, pdf, pages</param>
+        /// <param name="filter">A filter statement to identify specific records to retrieve. For more information on filtering, see [Filtering in REST](http://developer.avalara.com/avatax/filtering-in-rest/).<br />*Not filterable:* exemptionNumber, status, ecmStatus, ecmsId, ecmsStatus, pdf, pages</param>
         /// <param name="top">If nonzero, return no more than this number of results. Used with `$skip` to provide pagination for large datasets. Unless otherwise specified, the maximum number of records that can be returned from an API call is 1,000 records.</param>
         /// <param name="skip">If nonzero, skip this number of results before returning data. Used with `$top` to provide pagination for large datasets.</param>
         /// <param name="orderBy">A comma separated list of sort statements in the format `(fieldname) [ASC|DESC]`, for example `id ASC`.</param>
@@ -11638,7 +11640,7 @@ public interface IAvaTaxClient
 		
         /// <param name="companyId">The unique ID number of the company that recorded this customer</param>
         /// <param name="include">OPTIONAL - You can specify the value `certificates` to fetch information about certificates linked to the customer.</param>
-        /// <param name="filter">A filter statement to identify specific records to retrieve. For more information on filtering, see [Filtering in REST](http://developer.avalara.com/avatax/filtering-in-rest/).<br />*Not filterable:* shipTos</param>
+        /// <param name="filter">A filter statement to identify specific records to retrieve. For more information on filtering, see [Filtering in REST](http://developer.avalara.com/avatax/filtering-in-rest/).</param>
         /// <param name="top">If nonzero, return no more than this number of results. Used with `$skip` to provide pagination for large datasets. Unless otherwise specified, the maximum number of records that can be returned from an API call is 1,000 records.</param>
         /// <param name="skip">If nonzero, skip this number of results before returning data. Used with `$top` to provide pagination for large datasets.</param>
         /// <param name="orderBy">A comma separated list of sort statements in the format `(fieldname) [ASC|DESC]`, for example `id ASC`.</param>
@@ -13682,7 +13684,7 @@ public interface IAvaTaxClient
 		
         /// <param name="companyId">The ID of the company that owns this item.</param>
         /// <param name="itemId">The ID of the item you wish to delete the classifications.</param>
-        Task<List<ErrorDetail>> BatchDeleteItemClassificationsAsync(Int32 companyId, Int64 itemId);
+        Task<List<AssociatedObjectDeletedErrorDetailsModel>> BatchDeleteItemClassificationsAsync(Int32 companyId, Int64 itemId);
 
         /// Swagger Name: AvaTaxClient
         /// <summary>
@@ -13704,7 +13706,7 @@ public interface IAvaTaxClient
 		
         /// <param name="companyId">The ID of the company that owns this item.</param>
         /// <param name="itemId">The ID of the item you wish to delete the parameters.</param>
-        Task<List<ErrorDetail>> BatchDeleteItemParametersAsync(Int32 companyId, Int64 itemId);
+        Task<List<AssociatedObjectDeletedErrorDetailsModel>> BatchDeleteItemParametersAsync(Int32 companyId, Int64 itemId);
 
         /// Swagger Name: AvaTaxClient
         /// <summary>
@@ -13872,7 +13874,7 @@ public interface IAvaTaxClient
 		
         /// <param name="companyId">The ID of the company that owns this item.</param>
         /// <param name="itemCode">The code of the item you want to delete.</param>
-        Task<List<ErrorDetail>> DeleteCatalogueItemAsync(Int32 companyId, String itemCode);
+        Task<List<ObjectDeletedErrorModel>> DeleteCatalogueItemAsync(Int32 companyId, String itemCode);
 
         /// Swagger Name: AvaTaxClient
         /// <summary>
@@ -13896,7 +13898,7 @@ public interface IAvaTaxClient
 		
         /// <param name="companyId">The ID of the company that owns this item.</param>
         /// <param name="id">The ID of the item you wish to delete.</param>
-        Task<List<ErrorDetail>> DeleteItemAsync(Int32 companyId, Int64 id);
+        Task<List<ObjectDeletedErrorModel>> DeleteItemAsync(Int32 companyId, Int64 id);
 
         /// Swagger Name: AvaTaxClient
         /// <summary>
@@ -13917,7 +13919,7 @@ public interface IAvaTaxClient
         /// <param name="companyId">The company id.</param>
         /// <param name="itemId">The item id.</param>
         /// <param name="id">The item classification id.</param>
-        Task<List<ErrorDetail>> DeleteItemClassificationAsync(Int32 companyId, Int64 itemId, Int64 id);
+        Task<List<ObjectDeletedErrorModel>> DeleteItemClassificationAsync(Int32 companyId, Int64 itemId, Int64 id);
 
         /// Swagger Name: AvaTaxClient
         /// <summary>
@@ -13940,7 +13942,7 @@ public interface IAvaTaxClient
         /// <param name="companyId">The company id</param>
         /// <param name="itemId">The item id</param>
         /// <param name="id">The parameter id</param>
-        Task<List<ErrorDetail>> DeleteItemParameterAsync(Int32 companyId, Int64 itemId, Int64 id);
+        Task<List<ObjectDeletedErrorModel>> DeleteItemParameterAsync(Int32 companyId, Int64 itemId, Int64 id);
 
         /// Swagger Name: AvaTaxClient
         /// <summary>
@@ -13959,7 +13961,7 @@ public interface IAvaTaxClient
         /// <param name="companyId">The ID of the company that defined these items</param>
         /// <param name="itemId">The ID of the item as defined by the company that owns this tag.</param>
         /// <param name="itemTagDetailId">The ID of the item tag detail you wish to delete.</param>
-        Task<List<ErrorDetail>> DeleteItemTagAsync(Int32 companyId, Int64 itemId, Int32 itemTagDetailId);
+        Task<List<ObjectDeletedErrorModel>> DeleteItemTagAsync(Int32 companyId, Int64 itemId, Int32 itemTagDetailId);
 
         /// Swagger Name: AvaTaxClient
         /// <summary>
@@ -13977,7 +13979,7 @@ public interface IAvaTaxClient
 		
         /// <param name="companyId">The ID of the company that defined these items.</param>
         /// <param name="itemId">The ID of the item as defined by the company that owns this tag.</param>
-        Task<List<ErrorDetail>> DeleteItemTagsAsync(Int32 companyId, Int64 itemId);
+        Task<List<AssociatedObjectDeletedErrorDetailsModel>> DeleteItemTagsAsync(Int32 companyId, Int64 itemId);
 
         /// Swagger Name: AvaTaxClient
         /// <summary>
@@ -14081,7 +14083,7 @@ public interface IAvaTaxClient
 		
         /// <param name="companyId"></param>
         /// <param name="itemId"></param>
-        Task<TaxCodeRecommendationsOutputModel> GetItemTaxCodeRecommendationsAsync(Int32 companyId, Int64 itemId);
+        Task<List<TaxCodeRecommendationOutputModel>> GetItemTaxCodeRecommendationsAsync(Int32 companyId, Int64 itemId);
 
         /// Swagger Name: AvaTaxClient
         /// <summary>
@@ -14223,6 +14225,7 @@ public interface IAvaTaxClient
         /// * Classifications
         /// * Tags
         /// * Properties
+        /// * TaxCodeRecommendationStatus
         /// 
         /// ### Security Policies
         /// 
@@ -14230,7 +14233,7 @@ public interface IAvaTaxClient
         /// </remarks>
 		
         /// <param name="companyId">The ID of the company that defined these items</param>
-        /// <param name="filter">A filter statement to identify specific records to retrieve. For more information on filtering, see [Filtering in REST](http://developer.avalara.com/avatax/filtering-in-rest/).<br />*Not filterable:* taxCode, source, sourceEntityId, itemType, upc, summary, classifications, parameters, tags, properties, itemStatus, taxCodeRecommendationStatus</param>
+        /// <param name="filter">A filter statement to identify specific records to retrieve. For more information on filtering, see [Filtering in REST](http://developer.avalara.com/avatax/filtering-in-rest/).<br />*Not filterable:* taxCode, source, sourceEntityId, itemType, upc, summary, classifications, parameters, tags, properties, itemStatus, taxCodeRecommendationStatus, taxCodeRecommendations</param>
         /// <param name="include">A comma separated list of additional data to retrieve.</param>
         /// <param name="top">If nonzero, return no more than this number of results. Used with `$skip` to provide pagination for large datasets. Unless otherwise specified, the maximum number of records that can be returned from an API call is 1,000 records.</param>
         /// <param name="skip">If nonzero, skip this number of results before returning data. Used with `$top` to provide pagination for large datasets.</param>
@@ -14262,7 +14265,7 @@ public interface IAvaTaxClient
         /// * This API requires one of the following user roles: AccountAdmin, AccountUser, BatchServiceAdmin, CompanyAdmin, CompanyUser, CSPAdmin, CSPTester, SiteAdmin, SSTAdmin, SystemAdmin, TechnicalSupportAdmin, TechnicalSupportUser.;
         /// </remarks>
 		
-        /// <param name="filter">A filter statement to identify specific records to retrieve. For more information on filtering, see [Filtering in REST](http://developer.avalara.com/avatax/filtering-in-rest/).<br />*Not filterable:* taxCode, source, sourceEntityId, itemType, upc, summary, classifications, parameters, tags, properties, itemStatus, taxCodeRecommendationStatus</param>
+        /// <param name="filter">A filter statement to identify specific records to retrieve. For more information on filtering, see [Filtering in REST](http://developer.avalara.com/avatax/filtering-in-rest/).<br />*Not filterable:* taxCode, source, sourceEntityId, itemType, upc, summary, classifications, parameters, tags, properties, itemStatus, taxCodeRecommendationStatus, taxCodeRecommendations</param>
         /// <param name="include">A comma separated list of additional data to retrieve.</param>
         /// <param name="top">If nonzero, return no more than this number of results. Used with `$skip` to provide pagination for large datasets. Unless otherwise specified, the maximum number of records that can be returned from an API call is 1,000 records.</param>
         /// <param name="skip">If nonzero, skip this number of results before returning data. Used with `$top` to provide pagination for large datasets.</param>
@@ -14323,7 +14326,7 @@ public interface IAvaTaxClient
 		
         /// <param name="companyId">The ID of the company that defined these items.</param>
         /// <param name="tag">The master tag to be associated with item.</param>
-        /// <param name="filter">A filter statement to identify specific records to retrieve. For more information on filtering, see [Filtering in REST](http://developer.avalara.com/avatax/filtering-in-rest/).<br />*Not filterable:* taxCode, source, sourceEntityId, itemType, upc, summary, classifications, parameters, tags, properties, itemStatus, taxCodeRecommendationStatus</param>
+        /// <param name="filter">A filter statement to identify specific records to retrieve. For more information on filtering, see [Filtering in REST](http://developer.avalara.com/avatax/filtering-in-rest/).<br />*Not filterable:* taxCode, source, sourceEntityId, itemType, upc, summary, classifications, parameters, tags, properties, itemStatus, taxCodeRecommendationStatus, taxCodeRecommendations</param>
         /// <param name="include">A comma separated list of additional data to retrieve.</param>
         /// <param name="top">If nonzero, return no more than this number of results. Used with `$skip` to provide pagination for large datasets. Unless otherwise specified, the maximum number of records that can be returned from an API call is 1,000 records.</param>
         /// <param name="skip">If nonzero, skip this number of results before returning data. Used with `$top` to provide pagination for large datasets.</param>
@@ -14404,8 +14407,9 @@ public interface IAvaTaxClient
 		
         /// <param name="companyId">The ID of the company that this item belongs to.</param>
         /// <param name="id">The ID of the item you wish to update</param>
+        /// <param name="isRecommendationSelected">If true then Set recommendation status to RecommendationSelected</param>
         /// <param name="model">The item object you wish to update.</param>
-        Task<ItemModel> UpdateItemAsync(Int32 companyId, Int64 id, ItemModel model);
+        Task<ItemModel> UpdateItemAsync(Int32 companyId, Int64 id, Boolean? isRecommendationSelected, ItemModel model);
 
         /// Swagger Name: AvaTaxClient
         /// <summary>
diff --git a/src/enums/CertificateEcmStatus.cs b/src/enums/CertificateEcmStatus.cs
new file mode 100644
index 0000000..cfd80d9
--- /dev/null
+++ b/src/enums/CertificateEcmStatus.cs
@@ -0,0 +1,49 @@
+using System;
+
+/*
+ * AvaTax API Client Library
+ *
+ * (c) 2004-2023 Avalara, Inc.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ *
+ * @author Jonathan Wenger <jonathan.wenger@avalara.com>
+ * @author Sachin Baijal <sachin.baijal@avalara.com>
+ * Swagger name: AvaTaxClient 
+ */
+
+namespace Avalara.AvaTax.RestClient
+{
+    /// <summary>
+    /// 
+    /// </summary>
+    public enum CertificateEcmStatus
+    {
+        /// <summary>
+        /// 
+        /// </summary>
+        None = 0,
+
+        /// <summary>
+        /// 
+        /// </summary>
+        Expired = 1,
+
+        /// <summary>
+        /// 
+        /// </summary>
+        Invalid = 2,
+
+        /// <summary>
+        /// 
+        /// </summary>
+        Valid = 3,
+
+        /// <summary>
+        /// 
+        /// </summary>
+        PendingFuture = 4,
+
+    }
+}
diff --git a/src/models/ActiveCertificateModel.cs b/src/models/ActiveCertificateModel.cs
new file mode 100644
index 0000000..624bc5f
--- /dev/null
+++ b/src/models/ActiveCertificateModel.cs
@@ -0,0 +1,80 @@
+using System;
+using System.Collections.Generic;
+using Newtonsoft.Json;
+
+/*
+ * AvaTax API Client Library
+ *
+ * (c) 2004-2023 Avalara, Inc.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ *
+ * @author Jonathan Wenger <jonathan.wenger@avalara.com>
+ * @author Sachin Baijal <sachin.baijal@avalara.com>
+ * Swagger name: AvaTaxClient
+ */
+
+namespace Avalara.AvaTax.RestClient
+{
+    /// <summary>
+    /// Certificate with exemption reason and exposure zone. Exposed in url $includes
+    /// </summary>
+    public class ActiveCertificateModel
+    {
+        /// <summary>
+        /// Certificate ID.
+        /// </summary>
+        public Int64? id { get; set; }
+
+        /// <summary>
+        /// Created date time
+        /// </summary>
+        public DateTime? created { get; set; }
+
+        /// <summary>
+        /// Modified date time
+        /// </summary>
+        public DateTime? modified { get; set; }
+
+        /// <summary>
+        /// Certificate's expected tax number
+        /// </summary>
+        public String expectedTaxNumber { get; set; }
+
+        /// <summary>
+        /// Certificate's actual tax number
+        /// </summary>
+        public String actualTaxNumber { get; set; }
+
+        /// <summary>
+        /// 
+        /// </summary>
+        public ExposureZoneModel exposureZone { get; set; }
+
+        /// <summary>
+        /// 
+        /// </summary>
+        public ExemptionReasonModel expectedTaxCode { get; set; }
+
+        /// <summary>
+        /// 
+        /// </summary>
+        public ExemptionReasonModel actualTaxCode { get; set; }
+
+        /// <summary>
+        /// 
+        /// </summary>
+        public CertificateModel certificate { get; set; }
+
+
+        /// <summary>
+        /// Convert this object to a JSON string of itself
+        /// </summary>
+        /// <returns>A JSON string of this object</returns>
+        public override string ToString()
+        {
+            return JsonConvert.SerializeObject(this, new JsonSerializerSettings() { Formatting = Formatting.Indented });
+        }
+    }
+}
diff --git a/src/models/AssociatedObjectDeletedErrorDetailsModel.cs b/src/models/AssociatedObjectDeletedErrorDetailsModel.cs
new file mode 100644
index 0000000..6ead83a
--- /dev/null
+++ b/src/models/AssociatedObjectDeletedErrorDetailsModel.cs
@@ -0,0 +1,80 @@
+using System;
+using System.Collections.Generic;
+using Newtonsoft.Json;
+
+/*
+ * AvaTax API Client Library
+ *
+ * (c) 2004-2023 Avalara, Inc.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ *
+ * @author Jonathan Wenger <jonathan.wenger@avalara.com>
+ * @author Sachin Baijal <sachin.baijal@avalara.com>
+ * Swagger name: AvaTaxClient
+ */
+
+namespace Avalara.AvaTax.RestClient
+{
+    /// <summary>
+    /// 
+    /// </summary>
+    public class AssociatedObjectDeletedErrorDetailsModel
+    {
+        /// <summary>
+        /// 
+        /// </summary>
+        public ErrorCodeId? code { get; set; }
+
+        /// <summary>
+        /// 
+        /// </summary>
+        public Int32? number { get; set; }
+
+        /// <summary>
+        /// 
+        /// </summary>
+        public String message { get; set; }
+
+        /// <summary>
+        /// 
+        /// </summary>
+        public String description { get; set; }
+
+        /// <summary>
+        /// 
+        /// </summary>
+        public String faultCode { get; set; }
+
+        /// <summary>
+        /// 
+        /// </summary>
+        public String faultSubCode { get; set; }
+
+        /// <summary>
+        /// 
+        /// </summary>
+        public String helpLink { get; set; }
+
+        /// <summary>
+        /// 
+        /// </summary>
+        public String refersTo { get; set; }
+
+        /// <summary>
+        /// 
+        /// </summary>
+        public SeverityLevel? severity { get; set; }
+
+
+        /// <summary>
+        /// Convert this object to a JSON string of itself
+        /// </summary>
+        /// <returns>A JSON string of this object</returns>
+        public override string ToString()
+        {
+            return JsonConvert.SerializeObject(this, new JsonSerializerSettings() { Formatting = Formatting.Indented });
+        }
+    }
+}
diff --git a/src/models/CertificateInvalidReasonModel.cs b/src/models/CertificateInvalidReasonModel.cs
new file mode 100644
index 0000000..be397f3
--- /dev/null
+++ b/src/models/CertificateInvalidReasonModel.cs
@@ -0,0 +1,55 @@
+using System;
+using System.Collections.Generic;
+using Newtonsoft.Json;
+
+/*
+ * AvaTax API Client Library
+ *
+ * (c) 2004-2023 Avalara, Inc.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ *
+ * @author Jonathan Wenger <jonathan.wenger@avalara.com>
+ * @author Sachin Baijal <sachin.baijal@avalara.com>
+ * Swagger name: AvaTaxClient
+ */
+
+namespace Avalara.AvaTax.RestClient
+{
+    /// <summary>
+    /// Invalid reason for the certificate
+    /// </summary>
+    public class CertificateInvalidReasonModel
+    {
+        /// <summary>
+        /// 
+        /// </summary>
+        public Int32? id { get; set; }
+
+        /// <summary>
+        /// 
+        /// </summary>
+        public String name { get; set; }
+
+        /// <summary>
+        /// 
+        /// </summary>
+        public String description { get; set; }
+
+        /// <summary>
+        /// 
+        /// </summary>
+        public Boolean? systemCode { get; set; }
+
+
+        /// <summary>
+        /// Convert this object to a JSON string of itself
+        /// </summary>
+        /// <returns>A JSON string of this object</returns>
+        public override string ToString()
+        {
+            return JsonConvert.SerializeObject(this, new JsonSerializerSettings() { Formatting = Formatting.Indented });
+        }
+    }
+}
diff --git a/src/models/CertificateLogModel.cs b/src/models/CertificateLogModel.cs
new file mode 100644
index 0000000..19831f1
--- /dev/null
+++ b/src/models/CertificateLogModel.cs
@@ -0,0 +1,60 @@
+using System;
+using System.Collections.Generic;
+using Newtonsoft.Json;
+
+/*
+ * AvaTax API Client Library
+ *
+ * (c) 2004-2023 Avalara, Inc.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ *
+ * @author Jonathan Wenger <jonathan.wenger@avalara.com>
+ * @author Sachin Baijal <sachin.baijal@avalara.com>
+ * Swagger name: AvaTaxClient
+ */
+
+namespace Avalara.AvaTax.RestClient
+{
+    /// <summary>
+    /// certificate log for a customer. Exposed in url $includes
+    /// </summary>
+    public class CertificateLogModel
+    {
+        /// <summary>
+        /// Log ID
+        /// </summary>
+        public Int64? id { get; set; }
+
+        /// <summary>
+        /// Certificate ID
+        /// </summary>
+        public Int64? certificateId { get; set; }
+
+        /// <summary>
+        /// Account name
+        /// </summary>
+        public String account { get; set; }
+
+        /// <summary>
+        /// Log description
+        /// </summary>
+        public String entry { get; set; }
+
+        /// <summary>
+        /// Date of creation for log entry
+        /// </summary>
+        public DateTime? created { get; set; }
+
+
+        /// <summary>
+        /// Convert this object to a JSON string of itself
+        /// </summary>
+        /// <returns>A JSON string of this object</returns>
+        public override string ToString()
+        {
+            return JsonConvert.SerializeObject(this, new JsonSerializerSettings() { Formatting = Formatting.Indented });
+        }
+    }
+}
diff --git a/src/models/CertificateModel.cs b/src/models/CertificateModel.cs
index 6048b3f..ee998f9 100644
--- a/src/models/CertificateModel.cs
+++ b/src/models/CertificateModel.cs
@@ -109,6 +109,11 @@ public class CertificateModel
         /// </summary>
         public String status { get; set; }
 
+        /// <summary>
+        /// The status of the certificate as displayed on https://exemptions.avalara.com. Can take values
+        /// </summary>
+        public CertificateEcmStatus? ecmStatus { get; set; }
+
         /// <summary>
         /// The date/time when this record was created.
         /// </summary>
@@ -161,6 +166,41 @@ public class CertificateModel
         /// </summary>
         public List<CertificateAttributeModel> attributes { get; set; }
 
+        /// <summary>
+        /// A list of certificate update histories for this certificate.
+        ///  
+        /// You can fetch this data by specifying `$include=histories` when calling a certificate fetch API.
+        /// </summary>
+        public List<HistoryModel> histories { get; set; }
+
+        /// <summary>
+        /// A list of certificate update histories for this certificate.
+        ///  
+        /// You can fetch this data by specifying `$include=jobs` when calling a certificate fetch API.
+        /// </summary>
+        public List<CustomerJobModel> jobs { get; set; }
+
+        /// <summary>
+        /// A list of certificate logs for this certificate.
+        ///  
+        /// You can fetch this data by specifying `$include=logs` when calling a certificate fetch API.
+        /// </summary>
+        public List<CertificateLogModel> logs { get; set; }
+
+        /// <summary>
+        /// A list of invalid reasons if the certificate status is not valid
+        ///  
+        /// You can fetch this data by specifying `$include=invalid_reasons` when calling a certificate fetch API.
+        /// </summary>
+        public List<CertificateInvalidReasonModel> invalidReasons { get; set; }
+
+        /// <summary>
+        /// A list of custom defined fields for this certificate
+        ///  
+        /// You can fetch this data by specifying `$include=custom_fields` when calling a certificate fetch API.
+        /// </summary>
+        public List<CustomFieldModel> customFields { get; set; }
+
         /// <summary>
         /// The unique ID number of current AvaTax Exemption Certificate that refers this certificate.
         /// </summary>
diff --git a/src/models/CountryModel.cs b/src/models/CountryModel.cs
new file mode 100644
index 0000000..fceea26
--- /dev/null
+++ b/src/models/CountryModel.cs
@@ -0,0 +1,55 @@
+using System;
+using System.Collections.Generic;
+using Newtonsoft.Json;
+
+/*
+ * AvaTax API Client Library
+ *
+ * (c) 2004-2023 Avalara, Inc.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ *
+ * @author Jonathan Wenger <jonathan.wenger@avalara.com>
+ * @author Sachin Baijal <sachin.baijal@avalara.com>
+ * Swagger name: AvaTaxClient
+ */
+
+namespace Avalara.AvaTax.RestClient
+{
+    /// <summary>
+    /// Defines a country as known to Avalara's certificate management system.
+    /// </summary>
+    public class CountryModel
+    {
+        /// <summary>
+        /// The unique ID number of this country as defined in Avalara's certificate management system.
+        /// </summary>
+        public Int32? id { get; set; }
+
+        /// <summary>
+        /// The name of this country in US English.
+        /// </summary>
+        public String name { get; set; }
+
+        /// <summary>
+        /// The three-character ISO 3166 code for this country.
+        /// </summary>
+        public String initials { get; set; }
+
+        /// <summary>
+        /// The two-character ISO 3166 code for this country.
+        /// </summary>
+        public String abbreviation { get; set; }
+
+
+        /// <summary>
+        /// Convert this object to a JSON string of itself
+        /// </summary>
+        /// <returns>A JSON string of this object</returns>
+        public override string ToString()
+        {
+            return JsonConvert.SerializeObject(this, new JsonSerializerSettings() { Formatting = Formatting.Indented });
+        }
+    }
+}
diff --git a/src/models/CreateMultiDocumentModel.cs b/src/models/CreateMultiDocumentModel.cs
index 2728eef..7467e37 100644
--- a/src/models/CreateMultiDocumentModel.cs
+++ b/src/models/CreateMultiDocumentModel.cs
@@ -175,7 +175,9 @@ public class CreateMultiDocumentModel
         public TaxOverrideModel taxOverride { get; set; }
 
         /// <summary>
-        /// The three-character ISO 4217 currency code for this transaction.
+        /// The three-character ISO 4217 currency code representing the ‘invoice currency’ (the currency the transaction was invoiced in). 
+        /// If this is different than the currency the tax liability needs to be reported in, you’ll also need to provide the 
+        /// `exchangeRateCurrencyCode` and the `exchangeRate` for conversion to the reporting country.
         /// </summary>
         public String currencyCode { get; set; }
 
@@ -186,10 +188,8 @@ public class CreateMultiDocumentModel
         public ServiceMode? serviceMode { get; set; }
 
         /// <summary>
-        /// Currency exchange rate from this transaction to the company base currency.
-        ///  
-        /// This only needs to be set if the transaction currency is different than the company base currency.
-        /// It defaults to 1.0.
+        /// The currency exchange rate from the invoice currency (`currencyCode`) to the reporting currency (`exchangeRateCurrencyCode`).
+        /// This only needs to be set if the invoice currency and the reporting currency are different. It defaults to 1.0.
         /// </summary>
         public Decimal? exchangeRate { get; set; }
 
@@ -199,7 +199,8 @@ public class CreateMultiDocumentModel
         public DateTime? exchangeRateEffectiveDate { get; set; }
 
         /// <summary>
-        /// Optional three-character ISO 4217 reporting exchange rate currency code for this transaction. The default value is USD.
+        /// The three-character ISO 4217 currency code representing the ‘reporting currency’ (the currency the transaction’s tax liability needs to be reported in). 
+        /// You can leave this blank if the invoice currency provided in the `currencyCode` field is also the reporting currency.
         /// </summary>
         public String exchangeRateCurrencyCode { get; set; }
 
diff --git a/src/models/CreateTransactionModel.cs b/src/models/CreateTransactionModel.cs
index 6e7936c..f545ad5 100644
--- a/src/models/CreateTransactionModel.cs
+++ b/src/models/CreateTransactionModel.cs
@@ -155,7 +155,9 @@ public class CreateTransactionModel
         public TaxOverrideModel taxOverride { get; set; }
 
         /// <summary>
-        /// The three-character ISO 4217 currency code for this transaction.
+        /// The three-character ISO 4217 currency code representing the ‘invoice currency’ (the currency the transaction was invoiced in). 
+        /// If this is different than the currency the tax liability needs to be reported in, you’ll also need to provide the 
+        /// `exchangeRateCurrencyCode` and the `exchangeRate` for conversion to the reporting country.
         /// </summary>
         public String currencyCode { get; set; }
 
@@ -166,10 +168,8 @@ public class CreateTransactionModel
         public ServiceMode? serviceMode { get; set; }
 
         /// <summary>
-        /// Currency exchange rate from this transaction to the company base currency.
-        ///  
-        /// This only needs to be set if the transaction currency is different than the company base currency.
-        /// It defaults to 1.0.
+        /// The currency exchange rate from the invoice currency (`currencyCode`) to the reporting currency (`exchangeRateCurrencyCode`).
+        /// This only needs to be set if the invoice currency and the reporting currency are different. It defaults to 1.0.
         /// </summary>
         public Decimal? exchangeRate { get; set; }
 
@@ -179,7 +179,8 @@ public class CreateTransactionModel
         public DateTime? exchangeRateEffectiveDate { get; set; }
 
         /// <summary>
-        /// Optional three-character ISO 4217 reporting exchange rate currency code for this transaction. The default value is USD.
+        /// The three-character ISO 4217 currency code representing the ‘reporting currency’ (the currency the transaction’s tax liability needs to be reported in). 
+        /// You can leave this blank if the invoice currency provided in the `currencyCode` field is also the reporting currency.
         /// </summary>
         public String exchangeRateCurrencyCode { get; set; }
 
diff --git a/src/models/CustomFieldModel.cs b/src/models/CustomFieldModel.cs
index 25c033a..6f212eb 100644
--- a/src/models/CustomFieldModel.cs
+++ b/src/models/CustomFieldModel.cs
@@ -27,11 +27,36 @@ namespace Avalara.AvaTax.RestClient
     /// </summary>
     public class CustomFieldModel
     {
+        /// <summary>
+        /// Custom field ID
+        /// </summary>
+        public Int32? id { get; set; }
+
         /// <summary>
         /// The name of the custom field.
         /// </summary>
         public String name { get; set; }
 
+        /// <summary>
+        /// Custom field type
+        /// </summary>
+        public String type { get; set; }
+
+        /// <summary>
+        /// 
+        /// </summary>
+        public String possibleValues { get; set; }
+
+        /// <summary>
+        /// Custom field uses data entry or not?
+        /// </summary>
+        public Boolean? usesDataEntry { get; set; }
+
+        /// <summary>
+        /// Custom field is required in data entry or not?
+        /// </summary>
+        public Boolean? requiredInDataEntry { get; set; }
+
         /// <summary>
         /// The value of the custom field.
         /// </summary>
diff --git a/src/models/CustomerJobModel.cs b/src/models/CustomerJobModel.cs
new file mode 100644
index 0000000..aa8d402
--- /dev/null
+++ b/src/models/CustomerJobModel.cs
@@ -0,0 +1,50 @@
+using System;
+using System.Collections.Generic;
+using Newtonsoft.Json;
+
+/*
+ * AvaTax API Client Library
+ *
+ * (c) 2004-2023 Avalara, Inc.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ *
+ * @author Jonathan Wenger <jonathan.wenger@avalara.com>
+ * @author Sachin Baijal <sachin.baijal@avalara.com>
+ * Swagger name: AvaTaxClient
+ */
+
+namespace Avalara.AvaTax.RestClient
+{
+    /// <summary>
+    /// Customer job model. Exposed in url $includes
+    /// </summary>
+    public class CustomerJobModel
+    {
+        /// <summary>
+        /// ID
+        /// </summary>
+        public Int32? id { get; set; }
+
+        /// <summary>
+        /// Job number
+        /// </summary>
+        public Int32? jobNumber { get; set; }
+
+        /// <summary>
+        /// Job name
+        /// </summary>
+        public String name { get; set; }
+
+
+        /// <summary>
+        /// Convert this object to a JSON string of itself
+        /// </summary>
+        /// <returns>A JSON string of this object</returns>
+        public override string ToString()
+        {
+            return JsonConvert.SerializeObject(this, new JsonSerializerSettings() { Formatting = Formatting.Indented });
+        }
+    }
+}
diff --git a/src/models/CustomerModel.cs b/src/models/CustomerModel.cs
index e5ed7d0..f765781 100644
--- a/src/models/CustomerModel.cs
+++ b/src/models/CustomerModel.cs
@@ -177,6 +177,16 @@ public class CustomerModel
         /// </summary>
         public List<ExposureZoneModel> exposureZones { get; set; }
 
+        /// <summary>
+        /// A list of bill-to customer records that are connected to this ship-to customer.
+        ///  
+        /// Customer records represent businesses or individuals who can provide exemption certificates. Some customers
+        /// may have certificates that are linked to their shipping address or their billing address. To group these
+        /// customer records together, you may link multiple bill-to and ship-to addresses together to represent a single
+        /// entity that has multiple different addresses of different kinds.
+        /// </summary>
+        public List<CustomerModel> billTos { get; set; }
+
         /// <summary>
         /// A list of ship-to customer records that are connected to this bill-to customer.
         ///  
@@ -194,6 +204,31 @@ public class CustomerModel
         /// </summary>
         public List<CustomerAttributeModel> attributes { get; set; }
 
+        /// <summary>
+        /// List if active certificates with exemption reasons
+        /// </summary>
+        public List<ActiveCertificateModel> activeCertificates { get; set; }
+
+        /// <summary>
+        /// List of field update histories for this customer
+        /// </summary>
+        public List<HistoryModel> histories { get; set; }
+
+        /// <summary>
+        /// List of jobs for this customer
+        /// </summary>
+        public List<CustomerJobModel> jobs { get; set; }
+
+        /// <summary>
+        /// List of logs for this customer
+        /// </summary>
+        public List<CertificateLogModel> logs { get; set; }
+
+        /// <summary>
+        /// List of states where this customer ships to
+        /// </summary>
+        public List<StateModel> shipToStates { get; set; }
+
 
         /// <summary>
         /// Convert this object to a JSON string of itself
diff --git a/src/models/HistoryModel.cs b/src/models/HistoryModel.cs
new file mode 100644
index 0000000..ec1f3e7
--- /dev/null
+++ b/src/models/HistoryModel.cs
@@ -0,0 +1,65 @@
+using System;
+using System.Collections.Generic;
+using Newtonsoft.Json;
+
+/*
+ * AvaTax API Client Library
+ *
+ * (c) 2004-2023 Avalara, Inc.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ *
+ * @author Jonathan Wenger <jonathan.wenger@avalara.com>
+ * @author Sachin Baijal <sachin.baijal@avalara.com>
+ * Swagger name: AvaTaxClient
+ */
+
+namespace Avalara.AvaTax.RestClient
+{
+    /// <summary>
+    /// Update history for Avalara.AvaTax.AccountServices.Models.v2.CustomerModel and Avalara.AvaTax.AccountServices.Models.v2.CertificateModel. Exposed in url $includes
+    /// </summary>
+    public class HistoryModel
+    {
+        /// <summary>
+        /// ID
+        /// </summary>
+        public Int32? id { get; set; }
+
+        /// <summary>
+        /// Account name whose history this is
+        /// </summary>
+        public String account { get; set; }
+
+        /// <summary>
+        /// Field name which is updated
+        /// </summary>
+        public String field { get; set; }
+
+        /// <summary>
+        /// Old value of the field
+        /// </summary>
+        public String oldValue { get; set; }
+
+        /// <summary>
+        /// New value of the field
+        /// </summary>
+        public String newValue { get; set; }
+
+        /// <summary>
+        /// Date of creation of this history object
+        /// </summary>
+        public DateTime? created { get; set; }
+
+
+        /// <summary>
+        /// Convert this object to a JSON string of itself
+        /// </summary>
+        /// <returns>A JSON string of this object</returns>
+        public override string ToString()
+        {
+            return JsonConvert.SerializeObject(this, new JsonSerializerSettings() { Formatting = Formatting.Indented });
+        }
+    }
+}
diff --git a/src/models/ItemModel.cs b/src/models/ItemModel.cs
index 44df7d7..d58a909 100644
--- a/src/models/ItemModel.cs
+++ b/src/models/ItemModel.cs
@@ -142,6 +142,11 @@ public class ItemModel
         /// </summary>
         public TaxCodeRecommendationStatusOutputModel taxCodeRecommendationStatus { get; set; }
 
+        /// <summary>
+        /// Item tax code recommendations
+        /// </summary>
+        public List<TaxCodeRecommendationOutputModel> taxCodeRecommendations { get; set; }
+
 
         /// <summary>
         /// Convert this object to a JSON string of itself
diff --git a/src/models/ObjectDeletedErrorModel.cs b/src/models/ObjectDeletedErrorModel.cs
new file mode 100644
index 0000000..76d713f
--- /dev/null
+++ b/src/models/ObjectDeletedErrorModel.cs
@@ -0,0 +1,80 @@
+using System;
+using System.Collections.Generic;
+using Newtonsoft.Json;
+
+/*
+ * AvaTax API Client Library
+ *
+ * (c) 2004-2023 Avalara, Inc.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ *
+ * @author Jonathan Wenger <jonathan.wenger@avalara.com>
+ * @author Sachin Baijal <sachin.baijal@avalara.com>
+ * Swagger name: AvaTaxClient
+ */
+
+namespace Avalara.AvaTax.RestClient
+{
+    /// <summary>
+    /// 
+    /// </summary>
+    public class ObjectDeletedErrorModel
+    {
+        /// <summary>
+        /// 
+        /// </summary>
+        public ErrorCodeId? code { get; set; }
+
+        /// <summary>
+        /// 
+        /// </summary>
+        public Int32? number { get; set; }
+
+        /// <summary>
+        /// 
+        /// </summary>
+        public String message { get; set; }
+
+        /// <summary>
+        /// 
+        /// </summary>
+        public String description { get; set; }
+
+        /// <summary>
+        /// 
+        /// </summary>
+        public String faultCode { get; set; }
+
+        /// <summary>
+        /// 
+        /// </summary>
+        public String faultSubCode { get; set; }
+
+        /// <summary>
+        /// 
+        /// </summary>
+        public String helpLink { get; set; }
+
+        /// <summary>
+        /// 
+        /// </summary>
+        public String refersTo { get; set; }
+
+        /// <summary>
+        /// 
+        /// </summary>
+        public SeverityLevel? severity { get; set; }
+
+
+        /// <summary>
+        /// Convert this object to a JSON string of itself
+        /// </summary>
+        /// <returns>A JSON string of this object</returns>
+        public override string ToString()
+        {
+            return JsonConvert.SerializeObject(this, new JsonSerializerSettings() { Formatting = Formatting.Indented });
+        }
+    }
+}
diff --git a/src/models/StateModel.cs b/src/models/StateModel.cs
new file mode 100644
index 0000000..8949848
--- /dev/null
+++ b/src/models/StateModel.cs
@@ -0,0 +1,60 @@
+using System;
+using System.Collections.Generic;
+using Newtonsoft.Json;
+
+/*
+ * AvaTax API Client Library
+ *
+ * (c) 2004-2023 Avalara, Inc.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ *
+ * @author Jonathan Wenger <jonathan.wenger@avalara.com>
+ * @author Sachin Baijal <sachin.baijal@avalara.com>
+ * Swagger name: AvaTaxClient
+ */
+
+namespace Avalara.AvaTax.RestClient
+{
+    /// <summary>
+    /// Defines a state, region, or province as known to Avalara's certificate management system.
+    /// </summary>
+    public class StateModel
+    {
+        /// <summary>
+        /// A unique ID number that represents this state, region, or province.
+        /// </summary>
+        public Int32? id { get; set; }
+
+        /// <summary>
+        /// The state, region, or province name as known in US English.
+        /// </summary>
+        public String name { get; set; }
+
+        /// <summary>
+        /// The abbreviated two or three character ISO 3166 state, province, or region code.
+        /// </summary>
+        public String initials { get; set; }
+
+        /// <summary>
+        /// A geocoding identification number for this state
+        /// </summary>
+        public Int32? geoCode { get; set; }
+
+        /// <summary>
+        /// 
+        /// </summary>
+        public CountryModel country { get; set; }
+
+
+        /// <summary>
+        /// Convert this object to a JSON string of itself
+        /// </summary>
+        /// <returns>A JSON string of this object</returns>
+        public override string ToString()
+        {
+            return JsonConvert.SerializeObject(this, new JsonSerializerSettings() { Formatting = Formatting.Indented });
+        }
+    }
+}
diff --git a/src/models/TaxCodeRecommendationOutputModel.cs b/src/models/TaxCodeRecommendationOutputModel.cs
new file mode 100644
index 0000000..283145c
--- /dev/null
+++ b/src/models/TaxCodeRecommendationOutputModel.cs
@@ -0,0 +1,45 @@
+using System;
+using System.Collections.Generic;
+using Newtonsoft.Json;
+
+/*
+ * AvaTax API Client Library
+ *
+ * (c) 2004-2023 Avalara, Inc.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ *
+ * @author Jonathan Wenger <jonathan.wenger@avalara.com>
+ * @author Sachin Baijal <sachin.baijal@avalara.com>
+ * Swagger name: AvaTaxClient
+ */
+
+namespace Avalara.AvaTax.RestClient
+{
+    /// <summary>
+    /// Tax Code Recommendation Output Model
+    /// </summary>
+    public class TaxCodeRecommendationOutputModel
+    {
+        /// <summary>
+        /// Recommended TaxCode
+        /// </summary>
+        public String taxCode { get; set; }
+
+        /// <summary>
+        /// Recommended TaxCode Level
+        /// </summary>
+        public String level { get; set; }
+
+
+        /// <summary>
+        /// Convert this object to a JSON string of itself
+        /// </summary>
+        /// <returns>A JSON string of this object</returns>
+        public override string ToString()
+        {
+            return JsonConvert.SerializeObject(this, new JsonSerializerSettings() { Formatting = Formatting.Indented });
+        }
+    }
+}
diff --git a/src/models/TransactionLineDetailModel.cs b/src/models/TransactionLineDetailModel.cs
index 4ad2ca6..e9b4e67 100644
--- a/src/models/TransactionLineDetailModel.cs
+++ b/src/models/TransactionLineDetailModel.cs
@@ -249,7 +249,9 @@ public class TransactionLineDetailModel
         public Boolean? isNonPassThru { get; set; }
 
         /// <summary>
-        /// The Taxes/Fee component. True if the fee is applied.
+        /// The Taxes/Fee component. True if the fee is applied. 
+        /// When `isFee` is `false`, this represents a tax rate percentage. For example, `"rate": 0.022500` represents a 2.25% tax rate.
+        /// When `isFee` is `true`, this represents a specific monetary amount. For example, for `"currencyCode": "USD"` and `"isFee": true`, the `"rate": 15` represents a fee of $15.00 USD.
         /// </summary>
         public Boolean? isFee { get; set; }
 
diff --git a/src/models/TransactionModel.cs b/src/models/TransactionModel.cs
index 308b1ec..6202185 100644
--- a/src/models/TransactionModel.cs
+++ b/src/models/TransactionModel.cs
@@ -73,12 +73,15 @@ public class TransactionModel
         public String batchCode { get; set; }
 
         /// <summary>
-        /// The three-character ISO 4217 currency code that was used for payment for this transaction.
+        /// The three-character ISO 4217 currency code representing the ‘invoice currency’ (the currency the transaction was invoiced in). 
+        /// If this is different than the currency the tax liability needs to be reported in, you’ll also need to provide the 
+        /// `exchangeRateCurrencyCode` and the `exchangeRate` for conversion to the reporting country.
         /// </summary>
         public String currencyCode { get; set; }
 
         /// <summary>
-        /// The three-character ISO 4217 exchange rate currency code that was used for payment for this transaction.
+        /// The three-character ISO 4217 currency code representing the ‘reporting currency’ (the currency the transaction’s tax liability needs to be reported in). 
+        /// You can leave this blank if the invoice currency provided in the `currencyCode` field is also the reporting currency.
         /// </summary>
         public String exchangeRateCurrencyCode { get; set; }
 
@@ -268,7 +271,8 @@ public class TransactionModel
         public DateTime? exchangeRateEffectiveDate { get; set; }
 
         /// <summary>
-        /// If this transaction included foreign currency exchange, this is the exchange rate that was used.
+        /// The currency exchange rate from the invoice currency (`currencyCode`) to the reporting currency (`exchangeRateCurrencyCode`).
+        /// This only needs to be set if the invoice currency and the reporting currency are different. It defaults to 1.0.
         /// </summary>
         public Decimal? exchangeRate { get; set; }