How To Fix /IWBEP/CM_V4_MED063 - Return is EDM-based

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_V4_MED -

• Message number: 063

• Message text: Return is EDM-based

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/CM_V4_MED063 - Return is EDM-based ?

  The SAP error message /IWBEP/CM_V4_MED063 Return is EDM-based typically occurs in the context of SAP Gateway and OData services. This error indicates that the response being returned from the OData service is based on the Entity Data Model (EDM), but there is a mismatch or issue with the expected format or structure of the response.
  Cause:
  
  Mismatch in Data Model: The OData service might be returning data that does not conform to the expected EDM structure. This can happen if the service is not properly defined or if there are changes in the underlying data model that are not reflected in the service.
  Service Configuration Issues: There may be issues with the service configuration, such as incorrect annotations or missing metadata.
  Data Retrieval Issues: The data being retrieved might not be available or might be in an unexpected format, leading to the EDM-based response not being properly formed.
  Versioning Issues: If there are multiple versions of the OData service, the client might be calling an outdated version that does not support the expected EDM structure.
  
  Solution:
  
  Check Service Metadata: Verify the metadata of the OData service to ensure that it is correctly defined and matches the expected EDM structure. You can access the metadata by appending $metadata to the service URL.
  Review Service Implementation: Check the implementation of the OData service to ensure that it is correctly returning data in the expected format. Look for any discrepancies in the data model or annotations.
  Update Service: If there have been changes to the underlying data model, update the OData service to reflect these changes. This may involve regenerating the service or updating the service definition.
  Test with Different Clients: If possible, test the OData service with different clients (e.g., Postman, SAP Fiori) to see if the issue persists across different environments.
  Check for Errors in the Backend: Look for any errors in the backend system that might be affecting the data retrieval process. This could include issues with database connections, data availability, or authorization problems.
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes or updates that might address this specific error message.
  
  Related Information:
  
  OData Services: Understanding how OData services work in SAP Gateway can help in troubleshooting issues related to data retrieval and response formatting.
  EDM (Entity Data Model): Familiarity with the EDM and how it is structured can aid in identifying mismatches between the expected and actual data formats.
  SAP Gateway Logs: Reviewing the logs in the SAP Gateway can provide additional insights into the error and help identify the root cause.
  
  If the issue persists after trying the above solutions, it may be beneficial to engage with SAP support or consult with a technical expert familiar with SAP Gateway and OData services.