/IWBEP/SBOD329 - Entity Type Internal Name '&1' is not unique

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/SBOD -

• Message number: 329

• Message text: Entity Type Internal Name '&1' is not unique

Self-Explanatory Message

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AnswerBot

• What is the cause and solution for SAP error message /IWBEP/SBOD329 - Entity Type Internal Name '&1' is not unique ?

  The SAP error message /IWBEP/SBOD329 Entity Type Internal Name '&1' is not unique typically occurs in the context of SAP Gateway and OData services. This error indicates that there are multiple entity types defined with the same internal name within the OData service, which leads to ambiguity when the service is being processed.
  Cause:
  
  Duplicate Entity Types: The most common cause of this error is that there are two or more entity types defined in the OData service with the same internal name. This can happen if the same entity is defined multiple times or if there are naming conflicts during the development of the service.
  Incorrect Metadata: If the metadata of the OData service is not correctly defined or has been modified incorrectly, it can lead to this error.
  Transport Issues: If the service has been transported from one system to another, there might be inconsistencies in the definitions that lead to duplicates.
  
  Solution:
  
  Check Entity Definitions: Go to the OData service definition in the SAP Gateway Service Builder (transaction code SEGW) and check the entity types. Ensure that each entity type has a unique internal name.
  Rename Duplicates: If you find duplicate entity types, rename them to ensure uniqueness. This may involve changing the name of one of the entities or consolidating them if they represent the same data.
  Regenerate the Service: After making changes, regenerate the service to ensure that the changes are reflected in the metadata. You can do this by right-clicking on the service in the Service Builder and selecting "Generate".
  Check Metadata: Use the OData service URL to check the metadata (e.g., http://<host>:<port>/sap/opu/odata/sap/<service_name>/$metadata). Look for duplicate entity types in the XML or JSON response.
  Clear Cache: Sometimes, clearing the cache of the OData service can help resolve issues related to outdated metadata. You can do this by using transaction code /IWFND/CACHE or by using the relevant options in the SAP Gateway.
  Transport Consistency: If the issue arose after a transport, ensure that the transport was successful and that all related objects were transported correctly.
  
  Related Information:
  
  Transaction Codes: 
  
  SEGW: Service Builder for OData services.
  /IWFND/CACHE: To clear the OData service cache.
  
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional guidance.
  Documentation: Review the SAP Gateway documentation for best practices in defining OData services and entity types.
  
  By following these steps, you should be able to resolve the error and ensure that your OData service functions correctly without naming conflicts.