How To Fix /IWFND/CM_DESIGNTIME135 - No operation selected; only structure and table type are (re-) generated

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWFND/CM_DESIGNTIME -

• Message number: 135

• Message text: No operation selected; only structure and table type are (re-) generated

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWFND/CM_DESIGNTIME135 - No operation selected; only structure and table type are (re-) generated ?

  The SAP error message /IWFND/CM_DESIGNTIME135 typically occurs in the context of SAP Gateway and OData services. This error indicates that there is no operation selected for the OData service, and it suggests that only structure and table types are being generated without any actual operations (like GET, POST, PUT, DELETE) being defined.
  Cause:
  
  No Operations Defined: The most common cause of this error is that the OData service does not have any operations defined. This can happen if the service was created but not fully configured.
  Service Activation Issues: The OData service might not be activated properly in the SAP Gateway.
  Model Issues: There could be issues with the data model or the metadata that prevent operations from being recognized.
  Missing Annotations: If the service relies on annotations for operations and they are missing or incorrectly defined, this error can occur.
  
  Solution:
  
  
  Check Service Definition:
  
  Go to the SAP Gateway Service Builder (transaction code SEGW).
  Open your project and ensure that you have defined the necessary entity sets and operations (CRUD operations).
  If operations are missing, you need to define them.
  
  
  
  Activate the Service:
  
  Ensure that the OData service is activated in the SAP Gateway. You can do this using transaction code /IWFND/MAINT_SERVICE.
  Check if the service is listed and activated. If not, activate it.
  
  
  
  Regenerate the Runtime Artifacts:
  
  In the Service Builder, after making changes, regenerate the runtime artifacts by selecting the "Generate" option.
  This will ensure that the changes are reflected in the service.
  
  
  
  Check Metadata:
  
  Use the transaction /IWFND/GW_CLIENT to test the OData service and check the metadata.
  Ensure that the operations are correctly defined in the metadata.
  
  
  
  Review Annotations:
  
  If your service uses annotations, ensure that they are correctly defined and linked to the operations.
  
  
  
  Check for Errors in the Implementation:
  
  If you have implemented custom logic for the operations, ensure that there are no errors in the implementation that could prevent the operations from being recognized.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SEGW: Service Builder for OData services.
  /IWFND/MAINT_SERVICE: Maintenance of OData services.
  /IWFND/GW_CLIENT: Gateway Client for testing OData services.
  
  
  
  Documentation: Refer to SAP Help documentation for OData services and SAP Gateway for detailed guidance on service creation and troubleshooting.
  
  
  SAP Notes: Check for any relevant SAP Notes that might address specific issues related to this error message.
  
  
  By following these steps, you should be able to resolve the error and ensure that your OData service is functioning correctly.