diff --git a/customer.go b/customer.go
index 69d3a73..ac7b9f9 100644
--- a/customer.go
+++ b/customer.go
@@ -21,7 +21,7 @@ type CustomerSchema struct {
 	NickName string `json:"nickname"`									// 微信昵称
 	Avatar string `json:"avatar"`										// 微信头像。第三方不可获取
 	Gender int `json:"gender"`											// 性别
-	UnionID string `json:"unionid"`										// unionid，需要绑定微信开发者帐号才能获取到，查看绑定方法: https://open.work.weixin.qq.com/kf/doc/92512/93143/94769#%E5%A6%82%E4%BD%95%E8%8E%B7%E5%8F%96%E5%BE%AE%E4%BF%A1%E5%AE%A2%E6%88%B7%E7%9A%84unionid
+	UnionID string `json:"unionid"`			 							// unionid，需要绑定微信开发者帐号才能获取到，查看绑定方法: https://open.work.weixin.qq.com/kf/doc/92512/93143/94769#%E5%A6%82%E4%BD%95%E8%8E%B7%E5%8F%96%E5%BE%AE%E4%BF%A1%E5%AE%A2%E6%88%B7%E7%9A%84unionid
 }
 
 // CustomerBatchGetSchema 获取客户基本信息响应内容
diff --git a/error.go b/error.go
index 5e4bbcf..0ab11dc 100644
--- a/error.go
+++ b/error.go
@@ -17,6 +17,8 @@ const (
 	SDKUnknownError Error		= "未知错误"
 	// SDKInvalidCredential 错误码：40001
 	SDKInvalidCredential Error	= "不合法的secret参数"
+	// SDKInvalidCorpID 错误码：40013
+	SDKInvalidCorpID Error		= "无效的 CorpID"
 	// SDKAccessTokenInvalid 错误码：40014
 	SDKAccessTokenInvalid Error = "AccessToken 无效"
 	// SDKAccessTokenExpired 错误码：42001
@@ -41,6 +43,8 @@ func NewSDKErr(code int, msgList ...string) Error {
 		return SDKInvalidCredential
 	case 42001:
 		return SDKAccessTokenExpired
+	case 40013:
+		return SDKInvalidCorpID
 	case 40014:
 		return SDKAccessTokenInvalid
 	case 95011: