How To Fix /IWFND/CM_MGW_RT058 - Association &1 not defined in Metadata

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWFND/CM_MGW_RT -

• Message number: 058

• Message text: Association &1 not defined in Metadata

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWFND/CM_MGW_RT058 - Association &1 not defined in Metadata ?

  The SAP error message /IWFND/CM_MGW_RT058 Association &1 not defined in Metadata typically occurs in the context of SAP Gateway and OData services. This error indicates that there is an issue with the metadata definition of an OData service, specifically that an association referenced in the service is not defined in the metadata.
  Cause:
  
  Missing Association Definition: The association referenced in the OData service is not defined in the metadata of the service. This could happen if the association was not created or was deleted.
  Incorrect Service Implementation: The service implementation may reference an association that does not exist in the underlying data model.
  Changes in Data Model: If there have been changes to the underlying data model (like changes in the database tables or structures) without updating the OData service, it can lead to this error.
  Service Activation Issues: The OData service may not be properly activated or may not have been regenerated after changes were made.
  
  Solution:
  
  Check Metadata: Verify the metadata of the OData service to ensure that the association is defined correctly. You can do this by accessing the service's metadata URL (e.g., http://<host>:<port>/sap/opu/odata/sap/<service_name>/$metadata).
  Define the Association: If the association is missing, you need to define it in the data model of the OData service. This can be done in the SAP Gateway Service Builder (transaction code SEGW).
  Regenerate the Service: After making changes to the data model or associations, regenerate the service in the Service Builder. This can be done by right-clicking on the service and selecting "Generate Runtime Objects."
  Check Service Activation: Ensure that the OData service is activated in the SAP Gateway. You can check this in transaction code /IWFND/MAINT_SERVICE.
  Test the Service: After making the necessary changes, test the OData service again to see if the error persists.
  
  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 defining associations and working with metadata.
  Debugging: If the issue persists, consider debugging the service to trace where the association is being referenced and why it is not found.
  
  By following these steps, you should be able to resolve the error and ensure that your OData service functions correctly.