How To Fix /IWFND/CM_MGW_RT110 - Data object name: '&1' already exists

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWFND/CM_MGW_RT -

• Message number: 110

• Message text: Data object name: '&1' already exists

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWFND/CM_MGW_RT110 - Data object name: '&1' already exists ?

  The SAP error message /IWFND/CM_MGW_RT110 with the description "Data object name: '&1' already exists" typically occurs in the context of SAP Gateway and OData services. This error indicates that there is a conflict with the naming of data objects, such as entities or types, within the OData service definition.
  Cause:
  
  Duplicate Naming: The most common cause of this error is that there are two or more data objects (like entities or types) defined with the same name in the same service or in the same namespace.
  Service Registration Issues: If a service has been registered multiple times or if there are remnants of previous definitions that have not been cleaned up, this can lead to conflicts.
  Transport Issues: If you are transporting objects between systems (e.g., from development to quality assurance), there may be conflicts if the same objects exist in both systems.
  
  Solution:
  
  
  Check for Duplicates: 
  
  Go to the service definition in the SAP Gateway Service Builder (transaction code SEGW).
  Look for any entities or types that have the same name. If duplicates are found, rename or remove the unnecessary ones.
  
  
  
  Clear Cache: 
  
  Sometimes, the issue can be resolved by clearing the cache. Use transaction code /IWFND/CACHE to clear the cache for the OData services.
  
  
  
  Check Service Registration: 
  
  Use transaction code /IWFND/MAINT_SERVICE to check the registered services. Ensure that the service is not registered multiple times or that there are no conflicts in the service definitions.
  
  
  
  Transport Management: 
  
  If the issue arises after a transport, check the transport logs and ensure that there are no conflicts in the objects being transported. You may need to adjust the transport request or resolve conflicts manually.
  
  
  
  Namespace Management: 
  
  Ensure that you are using a proper namespace for your OData services to avoid conflicts with standard SAP objects or other custom objects.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  Documentation: Review the SAP Gateway documentation for best practices on naming conventions and service definitions.
  Community Forums: Consider searching or posting on SAP Community forums for insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify and resolve the cause of the /IWFND/CM_MGW_RT110 error in your SAP environment.