How To Fix /IWFND/CM_UM004 - No User Mapping for SAP system user name &1

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWFND/CM_UM -

• Message number: 004

• Message text: No User Mapping for SAP system user name &1

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWFND/CM_UM004 - No User Mapping for SAP system user name &1 ?

  The SAP error message /IWFND/CM_UM004 No User Mapping for SAP system user name &1 typically occurs in the context of SAP Gateway or OData services when there is an issue with user authentication or authorization. This error indicates that the system cannot find a user mapping for the specified SAP system user.
  Cause:
  
  Missing User Mapping: The user specified in the error message does not have a corresponding entry in the user mapping table.
  Incorrect User Configuration: The user might not be properly configured in the SAP Gateway system.
  Authorization Issues: The user may not have the necessary authorizations to access the OData service.
  System Configuration: There may be issues with the configuration of the SAP Gateway or the backend system.
  
  Solution:
  
  
  Check User Mapping:
  
  Go to transaction code /IWFND/MAINT_SERVICE.
  Check if the user is correctly mapped in the user mapping settings.
  If not, create a mapping for the user.
  
  
  
  Create User Mapping:
  
  Use transaction code /IWFND/USER_MAPPING to create a new user mapping.
  Enter the SAP system user and the corresponding user in the Gateway system.
  
  
  
  Verify User Authorizations:
  
  Ensure that the user has the necessary roles and authorizations to access the OData service.
  Check the roles assigned to the user in transaction code PFCG.
  
  
  
  Check System Configuration:
  
  Ensure that the SAP Gateway is properly configured to communicate with the backend system.
  Check the settings in transaction code /IWFND/GW_CLIENT to ensure that the connection is correctly set up.
  
  
  
  Review Logs:
  
  Check the Gateway error logs using transaction code /IWFND/ERROR_LOG for more detailed information about the error.
  Look for any additional error messages that might provide more context.
  
  
  
  Restart Services:
  
  Sometimes, restarting the SAP Gateway service can resolve transient issues.
  
  
  
  Related Information:
  
  User Mapping Table: The user mapping is typically stored in the table IWFND_USER_MAPPING.
  SAP Notes: Check for any relevant SAP Notes that might address specific issues related to user mapping or OData services.
  Documentation: Refer to the official SAP documentation for more details on configuring user mapping and troubleshooting OData services.
  
  By following these steps, you should be able to resolve the error message /IWFND/CM_UM004 No User Mapping for SAP system user name &1. If the issue persists, consider reaching out to your SAP Basis team or SAP support for further assistance.