How To Fix /IWBEP/CM_CP027 - Invalid namespace used in proxy model id '&1'

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_CP -

• Message number: 027

• Message text: Invalid namespace used in proxy model id '&1'

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/CM_CP027 - Invalid namespace used in proxy model id '&1' ?

  The SAP error message /IWBEP/CM_CP027 Invalid namespace used in proxy model id '&1' typically occurs in the context of SAP Gateway and OData services. This error indicates that there is an issue with the namespace defined in the proxy model ID that you are trying to use. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause:
  
  Invalid Namespace: The namespace specified in the proxy model ID does not match any of the defined namespaces in the system. This could be due to a typo or an incorrect configuration.
  Missing or Incorrect Configuration: The OData service or the model might not be properly configured, leading to the system not recognizing the namespace.
  Transport Issues: If the model was transported from another system, the namespace might not have been included or correctly set up in the target system.
  
  Solution:
  
  
  Check Namespace Configuration:
  
  Go to the transaction code SE80 (Object Navigator) and check the namespace defined for the proxy model ID.
  Ensure that the namespace is correctly defined and matches the expected format.
  
  
  
  Verify OData Service Registration:
  
  Use transaction code IWFND/MAINT_SERVICE to check if the OData service is correctly registered and activated.
  Ensure that the service is active and that the correct model is associated with it.
  
  
  
  Review Proxy Model ID:
  
  Double-check the proxy model ID you are using. Make sure it is correctly spelled and formatted.
  If you are using a custom model, ensure that it has been properly created and activated.
  
  
  
  Check Transport Requests:
  
  If the issue arose after a transport, verify that all necessary objects, including the namespace and related configurations, were included in the transport request.
  
  
  
  Recreate the Proxy Model:
  
  If the issue persists, consider recreating the proxy model. This can sometimes resolve issues related to misconfigurations.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to the specific version of SAP Gateway you are using for any known issues or additional troubleshooting steps.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific fixes or patches related to this error message.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  Debugging: If you have access to debugging tools, you can trace the execution to see where the error is being triggered, which may provide additional insights.
  
  By following these steps, you should be able to identify and resolve the issue related to the invalid namespace in the proxy model ID.