How To Fix /IWFND/CM_MGW_RT037 - Model '&1' version '&2' exists

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWFND/CM_MGW_RT -

• Message number: 037

• Message text: Model '&1' version '&2' exists

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWFND/CM_MGW_RT037 - Model '&1' version '&2' exists ?

  The SAP error message /IWFND/CM_MGW_RT037 indicates that there is a conflict with the versioning of a model in the SAP Gateway framework. Specifically, it means that a model with the specified name (&1) and version (&2) already exists in the system. This can occur during the activation or registration of a new version of a model when the system detects that the same model version is already present.
  Cause:
  
  Duplicate Model Registration: The model you are trying to register or activate is already registered in the system with the same name and version.
  Version Conflict: You may be trying to deploy a new version of a model without properly managing the existing versions.
  Transport Issues: If you are transporting changes from one system to another, there may be conflicts if the same model version exists in both systems.
  
  Solution:
  
  Check Existing Models: Use transaction code /IWFND/MAINT_SERVICE to check the existing models and their versions. Look for the model name and version that is causing the conflict.
  Delete or Update Existing Model: If the existing model is no longer needed, you can delete it. If you need to keep it, consider updating the version of the model you are trying to register.
  Change Versioning: When creating a new version of the model, ensure that you increment the version number to avoid conflicts with existing versions.
  Clear Cache: Sometimes, clearing the cache can help resolve issues related to model registration. You can do this using transaction code /IWFND/CACHE_CLEANUP.
  Check Transport Requests: If this issue arises during a transport, ensure that the transport request does not contain conflicting versions of the model.
  
  Related Information:
  
  SAP Gateway: The error is related to the SAP Gateway framework, which is used for building and managing OData services.
  Model Versioning: Understanding how versioning works in SAP Gateway is crucial. Each model should have a unique version number to avoid conflicts.
  Documentation: Refer to the SAP Help Portal for detailed documentation on OData services and model management in SAP Gateway.
  
  If the issue persists after trying the above solutions, consider reaching out to SAP support for further assistance.