diff --git a/cases/subinvoke/01-subinvoke/implementations/as/index.ts b/cases/subinvoke/01-subinvoke/implementations/as/index.ts
index 7fcaa8a..27e7c9e 100644
--- a/cases/subinvoke/01-subinvoke/implementations/as/index.ts
+++ b/cases/subinvoke/01-subinvoke/implementations/as/index.ts
@@ -1,13 +1,18 @@
 import {
   Args_addAndIncrement,
   Args_subinvokeThrowError,
+  Args_subinvokeMethodNotFound,
+  Args_subinvokeArgsIncorrect,
   ImportedSubinvoke_Module,
   ModuleBase
 } from "./wrap";
 import {
   Args_add as ImportedArgs_add,
-  Args_invokeThrowError
+  Args_invokeThrowError,
+  serializeaddArgs,
+  serializeinvokeThrowErrorArgs
 } from "./wrap/imported/ImportedSubinvoke_Module/serialization";
+import { wrap_subinvoke } from "@polywrap/wasm-as";
 
 export class Module extends ModuleBase {
   addAndIncrement(args: Args_addAndIncrement): i32 {
@@ -24,4 +29,24 @@ export class Module extends ModuleBase {
     }
     return ImportedSubinvoke_Module.invokeThrowError(importedArgs_throwError).unwrap();
   }
+
+  subinvokeMethodNotFound(_: Args_subinvokeMethodNotFound): boolean {
+    const argsAdd: ImportedArgs_add = { a: 1, b: 1 };
+    const argsBuf: ArrayBuffer = serializeaddArgs(argsAdd);
+    const result = wrap_subinvoke("authority/imported-subinvoke", "methodNotFound", argsBuf);
+    if (result.isErr) {
+      throw new Error(result.unwrapErr());
+    }
+    return true;
+  }
+
+  subinvokeArgsIncorrect(_: Args_subinvokeArgsIncorrect): boolean {
+    const wrongArgs: Args_invokeThrowError = { error: "Oops!" }
+    const argsBuf: ArrayBuffer = serializeinvokeThrowErrorArgs(wrongArgs);
+    const result = wrap_subinvoke("authority/imported-subinvoke", "add", argsBuf);
+    if (result.isErr) {
+      throw new Error(result.unwrapErr());
+    }
+    return true;
+  }
 }
diff --git a/cases/subinvoke/01-subinvoke/implementations/rs/lib.rs b/cases/subinvoke/01-subinvoke/implementations/rs/lib.rs
index 7c5fdf9..5fd6cca 100644
--- a/cases/subinvoke/01-subinvoke/implementations/rs/lib.rs
+++ b/cases/subinvoke/01-subinvoke/implementations/rs/lib.rs
@@ -1,6 +1,8 @@
 pub mod wrap;
-use imported::imported_subinvoke_module::ArgsAdd;
+use imported::imported_subinvoke_module::{ArgsAdd, ArgsInvokeThrowError};
 pub use wrap::*;
+use polywrap_msgpack_serde::to_vec;
+use polywrap_wasm_rs::subinvoke::wrap_subinvoke;
 
 impl ModuleTrait for Module {
     fn add_and_increment(args: ArgsAddAndIncrement) -> Result<i32, String> {
@@ -14,8 +16,28 @@ impl ModuleTrait for Module {
 
     fn subinvoke_throw_error(args: ArgsSubinvokeThrowError) -> Result<bool, String> {
         Ok(ImportedSubinvokeModule::invoke_throw_error(
-            &imported::imported_subinvoke_module::ArgsInvokeThrowError { error: args.error },
+            &ArgsInvokeThrowError { error: args.error },
         )
         .unwrap())
     }
+
+    fn subinvoke_method_not_found(_: ArgsSubinvokeMethodNotFound) -> Result<bool, String> {
+        let args_add: ArgsAdd = ArgsAdd { a: 1, b: 1 };
+        let args_buf = to_vec(&args_add).map_err(|e| e.to_string())?;
+        let result = wrap_subinvoke("authority/imported-subinvoke", "methodNotFound", args_buf);
+        if result.is_err() {
+            return Err(result.unwrap_err());
+        }
+        Ok(true)
+    }
+
+    fn subinvoke_args_incorrect(_: ArgsSubinvokeArgsIncorrect) -> Result<bool, String> {
+        let wrong_args: ArgsInvokeThrowError = ArgsInvokeThrowError { error: "Oops!".to_string() };
+        let args_buf = to_vec(&wrong_args).map_err(|e| e.to_string())?;
+        let result = wrap_subinvoke("authority/imported-subinvoke", "add", args_buf);
+        if result.is_err() {
+            return Err(result.unwrap_err());
+        }
+        Ok(true)
+    }
 }
diff --git a/cases/subinvoke/01-subinvoke/schema.graphql b/cases/subinvoke/01-subinvoke/schema.graphql
index 998b08d..c53de81 100644
--- a/cases/subinvoke/01-subinvoke/schema.graphql
+++ b/cases/subinvoke/01-subinvoke/schema.graphql
@@ -3,4 +3,6 @@
 type Module {
   addAndIncrement(a: Int!, b: Int!): Int!
   subinvokeThrowError(error: String!): Boolean!
+  subinvokeMethodNotFound: Boolean!
+  subinvokeArgsIncorrect: Boolean!
 }
diff --git a/cases/subinvoke/validator.cue b/cases/subinvoke/validator.cue
index 8d3a789..6361cba 100644
--- a/cases/subinvoke/validator.cue
+++ b/cases/subinvoke/validator.cue
@@ -13,3 +13,13 @@
 		error: string
 	}
 }
+"subinvokeMethodNotFound": {
+	$0: {
+		error: string
+	}
+}
+"subinvokeArgsIncorrect": {
+	$0: {
+		error: string
+	}
+}
diff --git a/cases/subinvoke/workflow.json b/cases/subinvoke/workflow.json
index a8fc135..24e7345 100644
--- a/cases/subinvoke/workflow.json
+++ b/cases/subinvoke/workflow.json
@@ -35,6 +35,24 @@
           }
         }
       ]
+    },
+    "subinvokeMethodNotFound": {
+      "steps": [
+        {
+          "uri": "wrap://fs/./build",
+          "method": "subinvokeMethodNotFound",
+          "args": {}
+        }
+      ]
+    },
+    "subinvokeArgsIncorrect": {
+      "steps": [
+        {
+          "uri": "wrap://fs/./build",
+          "method": "subinvokeArgsIncorrect",
+          "args": {}
+        }
+      ]
     }
   }
 }
\ No newline at end of file