How To Fix /SCMTMS/IDM012 - User &1 is already assigned to central person &2; data not transferred

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCMTMS/IDM -

• Message number: 012

• Message text: User &1 is already assigned to central person &2; data not transferred

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SCMTMS/IDM012 - User &1 is already assigned to central person &2; data not transferred ?

  The SAP error message /SCMTMS/IDM012 User &1 is already assigned to central person &2; data not transferred typically occurs in the context of SAP Transportation Management (TM) when there is an attempt to assign a user to a central person (a master data object representing a person in the system) that is already associated with another user.
  Cause:
  
  Duplicate Assignment: The user (&1) you are trying to assign is already linked to the central person (&2). This can happen if the same user is being assigned to multiple central persons or if there is an attempt to reassign a user to a central person that already has an existing assignment.
  Data Integrity Rules: SAP enforces data integrity rules to prevent conflicts and ensure that each user is uniquely associated with a central person.
  
  Solution:
  
  Check Existing Assignments: Verify the current assignments of the user and the central person in question. You can do this by navigating to the relevant transaction or using reports that display user-central person assignments.
  Remove Existing Assignment: If the user needs to be assigned to the central person, you may need to first remove the existing assignment of the user from the current central person before making the new assignment.
  Use Different User: If the user should not be reassigned, consider using a different user for the central person.
  Consult Documentation: Review the SAP documentation or help resources for specific instructions on managing user assignments in your version of SAP TM.
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like /SCMTMS/IDM or other relevant transactions to manage user assignments.
  User Management: Familiarize yourself with user management in SAP, including roles and authorizations, to ensure that users are assigned correctly.
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional guidance on user assignments in SAP TM.
  Support: If the issue persists, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.
  
  By following these steps, you should be able to resolve the error and manage user assignments effectively in your SAP system.