How To Fix /IWFND/CM_DESIGNTIME021 - Specified operation is not Web service operation

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWFND/CM_DESIGNTIME -

• Message number: 021

• Message text: Specified operation is not Web service operation

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWFND/CM_DESIGNTIME021 - Specified operation is not Web service operation ?

  The SAP error message /IWFND/CM_DESIGNTIME021: Specified operation is not a Web service operation typically occurs in the context of SAP Gateway and OData services. This error indicates that the operation you are trying to invoke is not recognized as a valid web service operation within the context of the OData service.
  Causes:
  
  Incorrect Operation Name: The operation name specified in the request does not match any of the defined operations in the OData service.
  Service Configuration Issues: The OData service may not be properly configured or activated in the SAP Gateway.
  Service Versioning: If there are multiple versions of the service, the operation may exist in a different version than the one being called.
  Authorization Issues: The user may not have the necessary authorizations to access the specified operation.
  Service Not Registered: The OData service might not be registered or activated in the SAP Gateway.
  
  Solutions:
  
  Check Operation Name: Verify that the operation name in your request matches exactly with the operation defined in the OData service. This includes checking for case sensitivity and any typos.
  Review Service Metadata: Access the service metadata (usually available at the URL http://<host>:<port>/sap/opu/odata/sap/<service_name>/$metadata) to confirm that the operation is defined and correctly configured.
  Activate/Regenerate Service: If the service is not activated, you can activate it using transaction code /IWFND/MAINT_SERVICE. If changes were made to the service, consider regenerating it.
  Check Service Version: Ensure that you are calling the correct version of the service. If there are multiple versions, make sure you are using the correct endpoint.
  Authorization Check: Ensure that the user has the necessary authorizations to access the OData service and the specific operation.
  Debugging: If you have access to the backend, you can debug the service implementation to see if the request is reaching the service and how it is being processed.
  
  Related Information:
  
  Transaction Codes:
  
  /IWFND/MAINT_SERVICE: To maintain and activate OData services.
  /IWFND/ERROR_LOG: To check for error logs related to OData services.
  
  
  SAP Notes: Check for any relevant SAP Notes that might address known issues or provide additional guidance related to this error.
  Documentation: Review the SAP Gateway documentation for more details on service configuration and troubleshooting.
  
  By following these steps, you should be able to identify the cause of the error and implement the appropriate solution.