How To Fix /IWFND/CM_UM007 - User Mapping not unique for external user &1

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWFND/CM_UM -

• Message number: 007

• Message text: User Mapping not unique for external user &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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message /IWFND/CM_UM007 - User Mapping not unique for external user &1 ?

  The SAP error message /IWFND/CM_UM007 User Mapping not unique for external user &1 typically occurs in the context of SAP Gateway and OData services when there is an issue with user mapping for external users. This error indicates that the system has found multiple user mappings for the same external user, which leads to ambiguity in determining which internal user should be associated with the external user.
  Cause:
  
  
  Multiple User Mappings: The primary cause of this error is that there are multiple entries in the user mapping table for the same external user. This can happen if:
  
  The same external user has been mapped to different internal users.
  There are duplicate entries in the user mapping configuration.
  
  
  
  Configuration Issues: Incorrect or incomplete configuration of the user mapping settings in the SAP Gateway can also lead to this error.
  
  
  Data Consistency Issues: If there have been changes in user mappings or if the data has not been properly synchronized, it can result in inconsistencies.
  
  
  Solution:
  To resolve the error, you can follow these steps:
  
  
  Check User Mappings:
  
  Go to transaction code /IWFND/MAINT_SERVICE and check the user mapping settings.
  Look for the external user mentioned in the error message and verify if there are multiple mappings for that user.
  
  
  
  Remove Duplicates:
  
  If you find multiple mappings for the same external user, you need to decide which mapping is correct and remove the duplicates.
  You can do this by accessing the relevant user mapping table (usually IWFND_USER_MAPPING) and deleting or correcting the duplicate entries.
  
  
  
  Review Configuration:
  
  Ensure that the configuration for user mapping is set up correctly. This includes checking the settings in the SAP Gateway and ensuring that the user mapping is done as intended.
  
  
  
  Test the Changes:
  
  After making the necessary changes, test the OData service again to see if the error persists.
  
  
  
  Consult Documentation:
  
  If the issue continues, refer to SAP documentation or support notes related to user mapping and OData services for further troubleshooting steps.
  
  
  
  Related Information:
  
  
  Transaction Codes: 
  
  /IWFND/MAINT_SERVICE: For managing OData services.
  /IWFND/USER_MAPPING: For managing user mappings (if available in your system).
  
  
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional guidance.
  
  
  SAP Community: You can also search for discussions or posts related to this error in the SAP Community forums, where other users may have shared their experiences and solutions.
  
  
  By following these steps, you should be able to resolve the /IWFND/CM_UM007 User Mapping not unique for external user &1 error in your SAP system.