How To Fix /IWFND/CM_MGW_RT104 - Association '&1' not found

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWFND/CM_MGW_RT -

• Message number: 104

• Message text: Association '&1' not found

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWFND/CM_MGW_RT104 - Association '&1' not found ?

  The SAP error message /IWFND/CM_MGW_RT104 Association '&1' not found typically occurs in the context of SAP Gateway and OData services. This error indicates that the system is unable to find a specified association in the OData model. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause:
  
  Missing Association Definition: The association referenced in the error message is not defined in the OData service's metadata. This could be due to a missing or incorrectly defined association in the data model.
  Incorrect Service Registration: The OData service may not be properly registered or activated in the SAP Gateway.
  Model Changes: If there have been recent changes to the data model (like adding or removing associations) without regenerating the service, the metadata may be out of sync.
  Namespace Issues: The association might be defined in a different namespace that is not being referenced correctly.
  
  Solutions:
  
  
  Check the OData Model:
  
  Go to the service definition in the SAP Gateway Service Builder (transaction code SEGW).
  Verify that the association is defined correctly in the model.
  Ensure that the association name matches exactly with what is being referenced in the service.
  
  
  
  Regenerate the Service:
  
  If changes were made to the data model, regenerate the service by right-clicking on the service in the Service Builder and selecting "Generate".
  After regeneration, activate the service again.
  
  
  
  Check Service Registration:
  
  Use transaction code /IWFND/MAINT_SERVICE to check if the service is properly registered and activated.
  If not, register the service and ensure it is activated.
  
  
  
  Check for Namespace Issues:
  
  Ensure that the correct namespace is being used in the service definition and that it matches the one used in the association.
  
  
  
  Clear Cache:
  
  Sometimes, clearing the cache can resolve issues related to outdated metadata. You can do this by using transaction code /IWFND/CACHE and clearing the relevant caches.
  
  
  
  Debugging:
  
  If the issue persists, consider debugging the OData service to trace where the error is occurring. This can provide more insight into why the association is not being found.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  Documentation: Review the SAP Gateway documentation for more details on associations and how they should be defined.
  Community Forums: Consider searching or posting in SAP community forums for additional insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify and resolve the issue related to the /IWFND/CM_MGW_RT104 Association '&1' not found error message.