How To Fix /IWBEP/CM_V4_MED302 - Two complex types have the same EDM Name '&1'

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_V4_MED -

• Message number: 302

• Message text: Two complex 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_MED302 - Two complex types have the same EDM Name '&1' ?

  The SAP error message /IWBEP/CM_V4_MED302 indicates that there are two complex types in your OData service that have been defined with the same Entity Data Model (EDM) name. This can lead to ambiguity in the service definition, as the system cannot determine which complex type to reference.
  Cause:
  
  Duplicate Definitions: The most common cause of this error is that two or more complex types have been defined with the same name in the OData service metadata.
  Namespace Issues: If the complex types are defined in different namespaces but have the same name, this can also lead to conflicts.
  Model Changes: Changes made to the data model without proper adjustments in the service definition can result in duplicate names.
  
  Solution:
  
  Identify Duplicates: Check the OData service definition for complex types that share the same name. You can do this by reviewing the service's metadata or the underlying data model.
  Rename Complex Types: If you find duplicates, rename one of the complex types to ensure that each has a unique name. This can be done in the ABAP Dictionary or the relevant data model definition.
  Adjust Namespaces: If applicable, ensure that complex types are defined in different namespaces to avoid naming conflicts.
  Regenerate the Service: After making changes, regenerate the OData service to ensure that the new definitions are reflected in the service metadata.
  Check for References: Ensure that any references to the renamed complex type are updated throughout the service to avoid further issues.
  
  Related Information:
  
  OData Services: Understanding how OData services are structured and how complex types are defined is crucial. Familiarize yourself with the OData protocol and SAP Gateway concepts.
  SAP Gateway: If you are using SAP Gateway, you may want to check the transaction /IWFND/MAINT_SERVICE to manage your OData services.
  Debugging Tools: Use tools like the SAP Gateway Client (transaction /IWFND/GW_CLIENT) to test your OData service and see the metadata.
  Documentation: Refer to SAP documentation for OData service development and troubleshooting for more detailed guidance.
  
  By following these steps, you should be able to resolve the error and ensure that your OData service functions correctly without naming conflicts.