How To Fix /IWFND/MED_CHECK049 - EXTERNAL_NAME of '&1' is not specified

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWFND/MED_CHECK -

• Message number: 049

• Message text: EXTERNAL_NAME of '&1' is not specified

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWFND/MED_CHECK049 - EXTERNAL_NAME of '&1' is not specified ?

  The SAP error message /IWFND/MED_CHECK049 EXTERNAL_NAME of '&1' is not specified typically occurs in the context of SAP Gateway services, particularly when there is an issue with the metadata of an OData service. This error indicates that the external name for a specific entity or property is not defined in the service's metadata.
  Cause:
  
  Missing External Name: The external name for an entity or property in the OData service is not specified in the service definition.
  Service Definition Issues: There may be issues in the service definition or the associated data model that prevent the external name from being recognized.
  Model Annotations: If the OData service is using annotations, the external name might not be properly defined in the annotations.
  Transport Issues: If the service was transported from one system to another, some definitions might not have been included.
  
  Solution:
  
  
  Check Service Metadata: 
  
  Go to the SAP Gateway Service Builder (transaction code SEGW).
  Open the relevant project and check the entity types and properties to ensure that the external names are defined correctly.
  
  
  
  Define External Names:
  
  If the external name is missing, you can define it in the service definition. Right-click on the entity or property and select "Edit" to add the external name.
  
  
  
  Regenerate the Service:
  
  After making changes, regenerate the service by right-clicking on the project and selecting "Generate" to ensure that the changes are reflected in the service metadata.
  
  
  
  Check Annotations:
  
  If you are using annotations, ensure that they are correctly defined and that the external names are specified.
  
  
  
  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.
  
  
  
  Transport Issues:
  
  If the issue arose after a transport, check the transport logs to ensure that all necessary objects were transported correctly.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional guidance.
  Documentation: Refer to the SAP Gateway documentation for more information on defining and managing OData services.
  Community Forums: Consider searching or posting in SAP community forums for insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to resolve the error message /IWFND/MED_CHECK049 EXTERNAL_NAME of '&1' is not specified.