How To Fix /IWBEP/CM_MGW_RT138 - Association set '&1' references to disabled entity type '&2'

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/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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Smart SAP Assistant

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

  The SAP error message /IWBEP/CM_MGW_RT138 indicates that there is an issue with an association set 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 entity type definitions.
  Service Activation: The OData service might not be activated correctly, or there may be inconsistencies in the service metadata.
  
  Solution
  
  
  Check Entity Type Status:
  
  Go to the OData service definition in the SAP Gateway Service Builder (transaction code SEGW).
  Verify the status of the entity type referenced in the error message. Ensure that it is enabled and properly defined.
  
  
  
  Enable the Entity Type:
  
  If the entity type is disabled, enable it in the service definition. You can do this by right-clicking on the entity type and selecting the option to enable it.
  
  
  
  Review Associations:
  
  Check the associations defined in your OData model. Ensure that they are correctly set up and that all referenced entity types are enabled.
  
  
  
  Re-generate the Service:
  
  After making changes, regenerate the OData service. This can be done in the Service Builder by selecting the service and choosing the option to generate it again.
  
  
  
  Activate the Service:
  
  Ensure that the OData service is activated in the SAP Gateway. You can do this using transaction code /IWFND/MAINT_SERVICE to check the service status and activate it if necessary.
  
  
  
  Check Metadata:
  
  Access the service metadata (usually at the URL http://<host>:<port>/sap/opu/odata/sap/<service_name>/$metadata) to verify that the entity types and associations are correctly defined and enabled.
  
  
  
  Related Information
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional guidance.
  SAP Community: The SAP Community forums can be a valuable resource for troubleshooting similar issues, as other users may have encountered and resolved the same error.
  Documentation: Review the SAP Gateway documentation for best practices on defining and managing OData services, including entity types and associations.
  
  By following these steps, you should be able to resolve the error message /IWBEP/CM_MGW_RT138 and ensure that your OData service functions correctly.