How To Fix SUID01323 - The external UID of type &1 is already assigned to user &2

SAP Error Message - Details

• Message type: E = Error

• Message class: SUID01 - Identity Management

• Message number: 323

• Message text: The external UID of type &1 is already assigned to user &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SUID01323 - The external UID of type &1 is already assigned to user &2 ?

  The SAP error message SUID01323 indicates that there is a conflict with the assignment of an external User ID (UID) in the system. Specifically, it means that the external UID of a certain type (indicated by &1) is already assigned to another user (indicated by &2). This can occur in scenarios where external UIDs are used for user authentication or identification, such as in systems integrated with external identity providers.
  Cause:
  
  Duplicate Assignment: The external UID you are trying to assign to a user is already in use by another user in the SAP system.
  Configuration Issues: There may be issues in the configuration of user management or identity management systems that lead to conflicts in UID assignments.
  Data Migration: If users were migrated from another system, there may be duplicate UIDs that were not resolved during the migration process.
  
  Solution:
  
  
  Check Existing Assignments: 
  
  Use transaction code SU01 to check the user details of the user that currently holds the external UID. 
  Verify if the UID is indeed assigned to another user and determine if it can be reassigned.
  
  
  
  Reassign or Change UID:
  
  If the external UID is not needed for the user currently assigned, you can remove it from that user.
  Alternatively, you can assign a different external UID to the user you are trying to create or modify.
  
  
  
  Consult Documentation: 
  
  Review SAP documentation or guidelines regarding external UIDs to ensure compliance with best practices.
  
  
  
  User Management: 
  
  If you are using an identity management solution, check the configuration to ensure that UIDs are being managed correctly and that there are no conflicts.
  
  
  
  Contact Support: 
  
  If you are unable to resolve the issue, consider reaching out to SAP support for assistance, especially if this is part of a larger integration or identity management scenario.
  
  
  
  Related Information:
  
  
  Transaction Codes: 
  
  SU01 - User Maintenance
  SU10 - Mass User Maintenance
  SUIM - User Information System
  
  
  
  User Management Best Practices: 
  
  Maintain a clear and consistent strategy for assigning external UIDs to avoid conflicts.
  Regularly audit user assignments to ensure there are no duplicates.
  
  
  
  Documentation: 
  
  Refer to SAP Help Portal for detailed information on user management and external UIDs.
  
  
  
  By following these steps, you should be able to resolve the SUID01323 error and manage external UIDs effectively in your SAP system.