How To Fix /IWBEP/SBOD102 - Complex Type name '&1' is not unique

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/SBOD -

• Message number: 102

• Message text: Complex Type name '&1' is not unique

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/SBOD102 - Complex Type name '&1' is not unique ?

  The SAP error message /IWBEP/SBOD102 Complex Type name '&1' is not unique typically occurs in the context of SAP Gateway and OData services. This error indicates that there are multiple definitions of a complex type with the same name in the service metadata, which leads to ambiguity when the system tries to resolve which definition to use.
  Cause:
  
  
  Duplicate Definitions: The most common cause of this error is that there are multiple complex types defined with the same name in the OData service. This can happen if:
  
  You have multiple data models or service definitions that inadvertently define the same complex type.
  There are inconsistencies in the naming conventions or if the same type is included in different namespaces.
  
  
  
  Service Versioning: If you have multiple versions of a service and they define the same complex type, this can also lead to conflicts.
  
  
  Transport Issues: Sometimes, if transports are not properly managed, it can lead to duplicate definitions being imported into the system.
  
  
  Solution:
  
  
  Check for Duplicates: 
  
  Go to the service definition in the SAP Gateway Service Builder (transaction code SEGW).
  Look for complex types defined in your project and check if there are any duplicates.
  Ensure that each complex type has a unique name.
  
  
  
  Namespace Management: 
  
  If you are using multiple namespaces, ensure that complex types are defined in a way that avoids naming conflicts. Use a consistent naming convention that includes the namespace.
  
  
  
  Delete Unused Types: If you find that there are complex types that are no longer used or needed, consider deleting them from the service definition.
  
  
  Regenerate the Service: After making changes, regenerate the service to ensure that the metadata is updated. You can do this by:
  
  Right-clicking on the service in the Service Builder and selecting "Generate".
  Alternatively, you can use transaction code /IWBEP/REG_SERVICE to register the service again.
  
  
  
  Check Transport Requests: If the issue arose after a transport, check the transport requests to ensure that they did not inadvertently introduce duplicates.
  
  
  Debugging: If the issue persists, you may need to debug the service to see where the complex types are being defined and how they are being resolved.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to OData services and complex types for any known issues or patches.
  Documentation: Review the SAP Gateway documentation for best practices on defining complex types and managing OData services.
  Community Forums: Consider searching or posting on SAP Community forums for additional insights from other developers who may have encountered similar issues.
  
  By following these steps, you should be able to resolve the error and ensure that your OData service functions correctly without naming conflicts.