How To Fix /IWBEP/SBOD428 - Complex Type name '&1&2&3' is not unique

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/SBOD -

• Message number: 428

• Message text: Complex Type name '&1&2&3' is not unique

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/SBOD428 - Complex Type name '&1&2&3' is not unique ?

  The SAP error message /IWBEP/SBOD428 Complex Type name '&1&2&3' 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:
  
  The same complex type is defined in different data models or service definitions.
  There are multiple versions of the same service that have not been properly managed.
  
  
  
  Namespace Issues: If complex types are defined in different namespaces but have the same name, it can also lead to this error.
  
  
  Inconsistent Metadata: Changes in the underlying data model or service definitions that are not properly reflected in the OData service metadata can cause this issue.
  
  
  Solution:
  
  
  Check for Duplicates: Review the definitions of complex types in your OData service. Look for any duplicate names and ensure that each complex type has a unique name.
  
  
  Namespace Management: If you have complex types with the same name in different namespaces, consider renaming them or ensuring that they are properly qualified with their namespaces.
  
  
  Regenerate Service Metadata: After making changes to the complex types, regenerate the service metadata. This can often be done through the SAP Gateway Service Builder (transaction code SEGW) by:
  
  Right-clicking on the service and selecting "Generate".
  Ensuring that the service is activated after regeneration.
  
  
  
  Clear Cache: Sometimes, the issue may persist due to cached metadata. Clear the cache of the OData service using transaction code /IWFND/MAINT_SERVICE and then re-test the service.
  
  
  Check Service Implementation: If you are implementing the service in a custom way, ensure that the implementation does not inadvertently create duplicate complex types.
  
  
  Related Information:
  
  
  Transaction Codes: 
  
  SEGW: Service Builder for OData services.
  /IWFND/MAINT_SERVICE: Maintenance of OData services.
  
  
  
  Documentation: Refer to SAP Help documentation for OData services and Gateway for best practices on defining complex types and managing service metadata.
  
  
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to complex types and OData services.
  
  
  By following these steps, you should be able to resolve the error and ensure that your OData service functions correctly without ambiguity in complex type definitions.