How To Fix /IWBEP/CM_V4_MED207 - Entity type: EDM name '&1' already used in complex type

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_V4_MED -

• Message number: 207

• Message text: Entity type: EDM name '&1' already used in complex type

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/CM_V4_MED207 - Entity type: EDM name '&1' already used in complex type ?

  The SAP error message /IWBEP/CM_V4_MED207 indicates that there is a conflict in the definition of an entity type in your OData service. Specifically, the error states that the entity type with the EDM name &1 is already being used in a complex type. This typically occurs when there is an attempt to define an entity type that has already been defined or referenced elsewhere in your OData model.
  Cause:
  
  Duplicate Entity Type Definition: The entity type is defined more than once in the OData service.
  Complex Type Reference: The entity type is being referenced in a complex type, and there is a conflict in the naming or structure.
  Model Configuration Issues: There may be issues in the way the OData model is configured, leading to conflicts in entity type definitions.
  
  Solution:
  
  Check Entity Type Definitions: Review your OData service definitions to ensure that the entity type is not defined multiple times. Look for duplicate entries in your metadata or model configuration.
  Review Complex Types: If the entity type is being used in a complex type, ensure that it is correctly referenced and not causing conflicts. You may need to adjust the complex type definition to avoid using the same entity type name.
  Adjust Naming Conventions: If you have multiple entity types that are similar, consider renaming them to avoid conflicts.
  Regenerate the OData Service: If you have made changes to the model, regenerate the OData service to ensure that the changes are reflected correctly.
  Check for Inheritance: If you are using inheritance in your entity types, ensure that the base and derived types are correctly defined and do not lead to conflicts.
  
  Related Information:
  
  OData Service Metadata: You can check the service metadata (usually accessible via a URL like /sap/opu/odata/sap/<service_name>/$metadata) to see the definitions of your entity types and complex types.
  SAP Notes and Documentation: Look for relevant SAP Notes or documentation that may provide additional insights or updates related to this error.
  Debugging Tools: Use debugging tools in SAP Gateway or transaction codes like /IWFND/MAINT_SERVICE to manage and troubleshoot your OData services.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.