/IWFND/CM_MGW_RT138 - Association set '&1' references to disabled entity type '&2'

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWFND/CM_MGW_RT -

• Message number: 138

• Message text: Association set '&1' references to disabled entity type '&2'

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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AnswerBot

• What is the cause and solution for SAP error message /IWFND/CM_MGW_RT138 - Association set '&1' references to disabled entity type '&2' ?

  The SAP error message /IWFND/CM_MGW_RT138 indicates that there is an issue with an association in your OData service. Specifically, it states that the association set references a disabled entity type. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause
  
  Disabled Entity Type: The entity type referenced in the association set is marked as disabled in the OData service. This can happen if the entity type is not properly defined or has been explicitly disabled in the service configuration.
  Model Configuration Issues: There may be issues in the data model configuration, such as incorrect associations or missing entity types.
  Service Activation: The OData service may not be activated correctly, or there may be inconsistencies in the service metadata.
  
  Solution
  
  
  Check Entity Type Status:
  
  Go to the SAP Gateway Service Builder (transaction code SEGW).
  Open your project and check the entity types defined in your model.
  Ensure that the entity type referenced in the association is enabled. If it is disabled, enable it.
  
  
  
  Review Associations:
  
  Verify the associations defined in your model. Ensure that they correctly reference the enabled entity types.
  If there are any incorrect associations, correct them.
  
  
  
  Re-generate the Service:
  
  After making changes, regenerate the service by right-clicking on the project and selecting "Generate Runtime Objects".
  This will update the service metadata and ensure that all changes are reflected.
  
  
  
  Activate the Service:
  
  Ensure that the OData service is activated in the SAP Gateway (transaction code /IWFND/MAINT_SERVICE).
  Check if the service is listed and activated. If not, activate it.
  
  
  
  Check for Errors in the Model:
  
  Use the "Check" functionality in the Service Builder to identify any other potential issues in the model.
  
  
  
  Test the Service:
  
  After making the necessary changes, test the OData service using the SAP Gateway Client (transaction code /IWFND/GW_CLIENT) to ensure that the error is resolved.
  
  
  
  Related Information
  
  SAP Gateway Documentation: Review the official SAP documentation for OData services and the Gateway framework for more detailed information on entity types and associations.
  Transaction Codes:
  
  SEGW: Service Builder for OData services.
  /IWFND/MAINT_SERVICE: Maintenance of OData services.
  /IWFND/GW_CLIENT: Testing OData services.
  
  
  Debugging: If the issue persists, consider debugging the service to trace the execution and identify where the error occurs.
  
  By following these steps, you should be able to resolve the error message /IWFND/CM_MGW_RT138 and ensure that your OData service functions correctly.