How To Fix /IWBEP/CM_MGW_RT121 - Association '&1' has the same name as data object '&2'

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_MGW_RT -

• Message number: 121

• Message text: Association '&1' has the same name as data object '&2'

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/CM_MGW_RT121 - Association '&1' has the same name as data object '&2' ?

  The SAP error message /IWBEP/CM_MGW_RT121 indicates that there is a naming conflict between an association and a data object in your OData service. Specifically, it means that an association is trying to use the same name as an existing data object (like an entity type or a complex type) in your service definition.
  Cause:
  This error typically occurs due to:
  
  Naming Conflicts: You have defined an association with the same name as an existing entity or complex type in your OData model.
  Model Definition Issues: The OData model might have been incorrectly defined, leading to duplicate names.
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Identify the Conflict:
  
  Check the OData service definition in the SAP Gateway Service Builder (transaction code SEGW).
  Look for the association that is causing the conflict (indicated by &1) and the data object that has the same name (indicated by &2).
  
  
  
  Rename the Association or Data Object:
  
  If the association and the data object are indeed conflicting, you will need to rename one of them to ensure that they have unique names.
  To rename, right-click on the association or data object in the Service Builder and choose the rename option.
  
  
  
  Regenerate the Service:
  
  After making the changes, regenerate the service to ensure that the changes take effect.
  You can do this by right-clicking on the project and selecting "Generate" or using the "Generate Runtime Objects" option.
  
  
  
  Test the Service:
  
  Once the service is regenerated, test it to ensure that the error is resolved and that the OData service behaves as expected.
  
  
  
  Related Information:
  
  OData Model: Understanding the structure of your OData model is crucial. Familiarize yourself with how entities, associations, and complex types are defined.
  SAP Gateway: The error is related to the SAP Gateway framework, which is used to expose SAP data as OData services.
  Best Practices: When designing OData services, always use unique and descriptive names for entities, associations, and complex types to avoid such conflicts.
  
  If you continue to face issues after following these steps, consider checking the SAP Community or consulting SAP documentation for further assistance.