How To Fix /IWBEP/SBOD328 - Complex Type Internal Name '&1' is not unique

/IWBEP/SBOD328 - Overview

• Message type: E = Error

• Message class: /IWBEP/SBOD -

• Message number: 328

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

Self-Explanatory Message

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/IWBEP/SBOD328 - Details

• The SAP error message /IWBEP/SBOD328 Complex 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 complex types defined with the same internal name in the service metadata, which leads to ambiguity when the system tries to process or generate the OData service.
  
  Cause:
  
  Duplicate Definitions: The most common cause of this error is that there are duplicate complex type definitions in the Data Model (e.g., in the CDS views or service definitions).
  Multiple Service Implementations: If multiple OData services are trying to use the same complex type without proper differentiation, it can lead to this error.
  Inconsistent Naming: Sometimes, complex types may have been renamed or modified, but the old definitions still exist in the system, causing conflicts.
  
  
  Solution:
  
  
  Check for Duplicates: Review the definitions of complex types in your OData service. Ensure that each complex type has a unique