diff --git a/.chronus/changes/fix-put-templ-2024-2-5-19-5-5.md b/.chronus/changes/fix-put-templ-2024-2-5-19-5-5.md
new file mode 100644
index 0000000000..d806a88d8b
--- /dev/null
+++ b/.chronus/changes/fix-put-templ-2024-2-5-19-5-5.md
@@ -0,0 +1,8 @@
+---
+# Change versionKind to one of: internal, fix, dependencies, feature, deprecation, breaking
+changeKind: fix
+packages:
+  - "@azure-tools/typespec-azure-resource-manager"
+---
+
+Fix for issue #254 cannot customize response in ARM PUT templates
diff --git a/docs/libraries/azure-resource-manager/reference/interfaces.md b/docs/libraries/azure-resource-manager/reference/interfaces.md
index 1f6b4e01f7..2347dd7fca 100644
--- a/docs/libraries/azure-resource-manager/reference/interfaces.md
+++ b/docs/libraries/azure-resource-manager/reference/interfaces.md
@@ -703,7 +703,7 @@ op Azure.ResourceManager.ArmResourceActionAsyncBase(provider: "Microsoft.ThisWil
 ### `ArmResourceActionNoContentAsync` {#Azure.ResourceManager.ArmResourceActionNoContentAsync}
 
 ```typespec
-op Azure.ResourceManager.ArmResourceActionNoContentAsync(provider: "Microsoft.ThisWillBeReplaced", body: Request): Azure.ResourceManager.ArmAcceptedLroResponse<"Resource operation accepted.", Azure.ResourceManager.ArmLroLocationHeader<Azure.Core.StatusMonitorPollingOptions<Azure.ResourceManager.ArmOperationStatus<never, Azure.ResourceManager.ResourceProvisioningState>, never, never>, void, string>> | Azure.ResourceManager.ArmNoContentResponse<"Action completed successfully."> | Error
+op Azure.ResourceManager.ArmResourceActionNoContentAsync(provider: "Microsoft.ThisWillBeReplaced", body: Request): Azure.ResourceManager.ArmAcceptedLroResponse<Description, LroHeaders> | Azure.ResourceManager.ArmNoContentResponse<"Action completed successfully."> | Error
 ```
 
 #### Template Parameters
@@ -792,7 +792,7 @@ op Azure.ResourceManager.ArmResourceCheckExistence(provider: "Microsoft.ThisWill
 ### `ArmResourceCreateOrReplaceAsync` {#Azure.ResourceManager.ArmResourceCreateOrReplaceAsync}
 
 ```typespec
-op Azure.ResourceManager.ArmResourceCreateOrReplaceAsync(provider: "Microsoft.ThisWillBeReplaced", resource: Resource): Azure.ResourceManager.ArmResourceUpdatedResponse<Resource> | Azure.ResourceManager.ArmResourceCreatedResponse<Resource, LroHeaders> | Error
+op Azure.ResourceManager.ArmResourceCreateOrReplaceAsync(provider: "Microsoft.ThisWillBeReplaced", resource: Resource): Response | Error
 ```
 
 #### Template Parameters
@@ -829,7 +829,7 @@ op Azure.ResourceManager.ArmResourceCreateOrReplaceSync(provider: "Microsoft.Thi
 A long-running resource CreateOrUpdate (PUT)
 
 ```typespec
-op Azure.ResourceManager.ArmResourceCreateOrUpdateAsync(provider: "Microsoft.ThisWillBeReplaced", resource: Resource): Azure.ResourceManager.ArmResourceUpdatedResponse<Resource> | Azure.ResourceManager.ArmResourceCreatedResponse<Resource, LroHeaders> | Error
+op Azure.ResourceManager.ArmResourceCreateOrUpdateAsync(provider: "Microsoft.ThisWillBeReplaced", resource: Resource): Response | Error
 ```
 
 #### Template Parameters
diff --git a/packages/typespec-azure-resource-manager/lib/operations.tsp b/packages/typespec-azure-resource-manager/lib/operations.tsp
index 5d4f0e0106..7515e47ef8 100644
--- a/packages/typespec-azure-resource-manager/lib/operations.tsp
+++ b/packages/typespec-azure-resource-manager/lib/operations.tsp
@@ -164,7 +164,7 @@ op ArmResourceCreateOrUpdateAsync<
 > is ArmCreateOperation<
   ResourceInstanceParameters<Resource, BaseParameters> & Parameters,
   Resource,
-  ArmResourceUpdatedResponse<Resource> | ArmResourceCreatedResponse<Resource, LroHeaders>,
+  Response,
   Error
 >;
 
@@ -592,17 +592,16 @@ op ArmResourceActionNoContentAsync<
   Resource extends ArmResource,
   Request extends TypeSpec.Reflection.Model | void,
   BaseParameters extends TypeSpec.Reflection.Model = DefaultBaseParameters<Resource>,
-  LroHeaders extends TypeSpec.Reflection.Model = ArmLroLocationHeader<
-    Azure.Core.StatusMonitorPollingOptions<ArmOperationStatus>,
-    void,
-    string
-  >,
+  LroHeaders extends TypeSpec.Reflection.Model = ArmLroLocationHeader,
   Parameters extends {} = {},
   Error extends {} = ErrorResponse
 > is ArmResourceActionAsyncBase<
   Resource,
   Request,
-  ArmAcceptedLroResponse | ArmNoContentResponse<"Action completed successfully.">,
+  ArmAcceptedLroResponse<
+    "Resource operation accepted.",
+    LroHeaders
+  > | ArmNoContentResponse<"Action completed successfully.">,
   BaseParameters,
   Parameters,
   Error