How To Fix 01643 - You are not authorized to assign user group &1 to systems

SAP Error Message - Details

• Message type: E = Error

• Message class: 01 -

• Message number: 643

• Message text: You are not authorized to assign user group &1 to systems

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 01643 - You are not authorized to assign user group &1 to systems ?

  The SAP error message "01643 You are not authorized to assign user group &1 to systems" typically indicates that the user attempting to perform an action does not have the necessary authorizations to assign a specific user group to systems in the SAP environment. This error is often encountered in the context of user administration and authorization management.
  Cause:
  
  Insufficient Authorizations: The user lacks the required authorization objects to perform the action of assigning user groups to systems.
  User Group Restrictions: The user group being assigned may have specific restrictions or may not be allowed to be assigned by the current user.
  Role Configuration: The roles assigned to the user may not include the necessary permissions for user group management.
  
  Solution:
  
  
  Check User Authorizations:
  
  Use transaction code SU53 immediately after the error occurs to analyze the authorization check that failed. This will provide insight into which specific authorization object is missing.
  Review the user's roles and authorizations in transaction SU01 or PFCG.
  
  
  
  Modify User Roles:
  
  If you have the necessary permissions, you can modify the user's roles to include the required authorization objects. Common authorization objects related to user management include:
  
  S_USER_AUTH (User Authorization)
  S_USER_GRP (User Group)
  S_USER_PRO (User Profile)
  
  
  Ensure that the user has the necessary permissions to assign user groups.
  
  
  
  Consult with Security Administrator:
  
  If you do not have the necessary permissions to change roles or authorizations, contact your SAP security administrator or the person responsible for user management in your organization. They can review and adjust the authorizations as needed.
  
  
  
  Review User Group Settings:
  
  Ensure that the user group you are trying to assign is valid and that there are no restrictions on it that would prevent assignment.
  
  
  
  Documentation and Training:
  
  Ensure that users involved in user group management are trained and aware of the authorization requirements and processes.
  
  
  
  Related Information:
  
  Transaction Codes:
  
  SU01: User Maintenance
  PFCG: Role Maintenance
  SU53: Display Authorization Check
  
  
  Authorization Objects: Familiarize yourself with the relevant authorization objects and their fields to understand what permissions are required for user group assignments.
  SAP Notes: Check SAP Notes for any specific patches or updates related to user management and authorization issues.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.