How To Fix /IWBEP/CM_V4_MED301 - Two entity types have the same EDM Name '&1'

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_V4_MED -

• Message number: 301

• Message text: Two entity types have the same EDM Name '&1'

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/CM_V4_MED301 - Two entity types have the same EDM Name '&1' ?

  The SAP error message /IWBEP/CM_V4_MED301 indicates that there are two entity types in your OData service that have been defined with the same Entity Data Model (EDM) name. This can lead to conflicts when the OData service is being generated or consumed, as the system cannot distinguish between the two entity types.
  Cause:
  
  
  Duplicate Entity Names: The most common cause of this error is that two or more entity types in your OData model have been assigned the same name. This can happen if:
  
  You have created multiple entity types manually and accidentally used the same name.
  You have imported or generated entity types from different sources that have overlapping names.
  
  
  
  Namespace Issues: If the entity types are in different namespaces but have the same name, this can also lead to confusion, especially if the namespaces are not properly defined or managed.
  
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Identify Duplicate Entity Types:
  
  Check your OData service definition in the SAP Gateway Service Builder (transaction code SEGW).
  Look for entity types that have the same name. You can do this by reviewing the list of entity types in the Data Model section.
  
  
  
  Rename or Remove Duplicates:
  
  If you find duplicate entity types, you can either rename one of them to ensure that each entity type has a unique name or remove the unnecessary duplicate if it is not needed.
  Ensure that the new names are meaningful and follow your naming conventions.
  
  
  
  Check for Namespace Conflicts:
  
  If the entity types are in different namespaces, ensure that the namespaces are correctly defined and that they do not lead to naming conflicts.
  
  
  
  Regenerate the Service:
  
  After making changes, regenerate the OData service to ensure that the changes take effect. You can do this in the Service Builder by selecting the service and choosing the "Generate" option.
  
  
  
  Test the Service:
  
  Once the service is regenerated, test it to ensure that the error is resolved and that the service behaves as expected.
  
  
  
  Related Information:
  
  Transaction Codes: Use SEGW for the Service Builder, SE80 for the Object Navigator, and IWFND/MAINT_SERVICE for managing OData services.
  Documentation: Refer to SAP Help documentation for OData services and the SAP Gateway for best practices in defining entity types and managing namespaces.
  Debugging: If the issue persists, consider using the SAP Gateway error log (transaction IWFND/ERROR_LOG) to get more details about the error and any related issues.
  
  By following these steps, you should be able to resolve the /IWBEP/CM_V4_MED301 error and ensure that your OData service is functioning correctly.