How To Fix /IWBEP/CM_MGW_RT080 - Vocabulary '&1' version '&2' already exists

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_MGW_RT -

• Message number: 080

• Message text: Vocabulary '&1' version '&2' already exists

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/CM_MGW_RT080 - Vocabulary '&1' version '&2' already exists ?

  The SAP error message /IWBEP/CM_MGW_RT080 indicates that there is an attempt to create or register a vocabulary (a set of terms or definitions) in the SAP Gateway that already exists. This error typically occurs in the context of OData services when there is a conflict with an existing vocabulary definition.
  Cause:
  
  
  Duplicate Vocabulary Registration: The error is primarily caused by trying to register a vocabulary that has already been defined in the system. This can happen if:
  
  The same vocabulary is being defined multiple times in the same or different service implementations.
  There is a misconfiguration in the service definition or metadata.
  
  
  
  Transport Issues: If you are transporting OData services or related objects between systems (e.g., from development to quality assurance), there might be inconsistencies or duplicates in the target system.
  
  
  Development Errors: During the development of OData services, developers might inadvertently create multiple versions of the same vocabulary.
  
  
  Solution:
  
  
  Check Existing Vocabularies: 
  
  Use transaction code /IWFND/MAINT_SERVICE to check the existing OData services and their associated vocabularies.
  Look for the vocabulary with the specified name and version in the error message.
  
  
  
  Remove or Modify Duplicates:
  
  If you find that the vocabulary already exists and is not needed, you can remove it or modify your service to use the existing vocabulary instead of trying to create a new one.
  If you need to keep both, consider renaming the new vocabulary or changing its version.
  
  
  
  Transport Management:
  
  If the issue arises after a transport, ensure that the transport does not include duplicate definitions. You may need to adjust the transport request or manually resolve conflicts in the target system.
  
  
  
  Check for Development Errors:
  
  Review the code or configuration that is attempting to register the vocabulary. Ensure that it is not being called multiple times inadvertently.
  
  
  
  Clear Cache:
  
  Sometimes, clearing the cache of the OData service can help resolve issues related to stale metadata. You can do this using transaction /IWFND/CACHE.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error. SAP frequently updates its knowledge base with solutions for common problems.
  Documentation: Review the SAP Gateway documentation for best practices on defining and managing vocabularies and OData services.
  Community Forums: Engage with the SAP Community or forums where other users may have encountered similar issues and can provide insights or solutions.
  
  By following these steps, you should be able to resolve the error and ensure that your OData service operates correctly without conflicts in vocabulary definitions.