How To Fix 01631 - You are not authorized to assign user group &1 to system &2

SAP Error Message - Details

• Message type: E = Error

• Message class: 01 -

• Message number: 631

• Message text: You are not authorized to assign user group &1 to system &2

What causes this issue?

You are not authorized to change the assignment for system &V2& for
users in user group &V1&.

System Response

The system assignment was not changed.

How to fix this error?

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 01631 - You are not authorized to assign user group &1 to system &2 ?

  The SAP error message 01631, which states "You are not authorized to assign user group &1 to system &2," typically occurs when a user attempts to assign a user group to a system without having the necessary authorizations. This error is related to user management and authorization in SAP systems.
  Cause:
  The primary cause of this error is a lack of appropriate authorization for the user trying to perform the action. Specifically, the user does not have the necessary permissions to assign the specified user group to the specified system.
  Solution:
  To resolve this issue, you can take the following steps:
  
  
  Check User Authorizations:
  
  Verify the user's roles and authorizations in the SAP system. You can do this by using transaction code SU01 to check the user's profile and assigned roles.
  Ensure that the user has the necessary authorizations to manage user groups and systems.
  
  
  
  Assign Appropriate Roles:
  
  If the user lacks the required authorizations, you may need to assign them a role that includes the necessary permissions. This could involve roles related to user administration, such as SAP_ALL (for testing purposes only) or a more specific role that includes the necessary authorizations for user group assignments.
  
  
  
  Authorization Object:
  
  The relevant authorization object for this action is typically S_USER_AG (User Master Maintenance: User Groups). Ensure that the user has the necessary authorizations for this object.
  
  
  
  Consult with Security Team:
  
  If you are not authorized to change user roles or if you are unsure about which roles to assign, consult with your SAP security team or administrator. They can help determine the appropriate roles and authorizations needed.
  
  
  
  Testing:
  
  After making changes to the user's authorizations, have the user log out and log back in to ensure that the new authorizations take effect. Then, attempt the action again to see if the error persists.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SU01: User Maintenance
  PFCG: Role Maintenance
  SU53: Display Authorization Check (to analyze authorization issues)
  
  
  
  Documentation:
  
  Review SAP documentation on user management and authorization concepts to better understand how to manage user roles and permissions effectively.
  
  
  
  Best Practices:
  
  Regularly review user roles and authorizations to ensure that users have the appropriate access levels.
  Implement a least privilege access model to minimize security risks.
  
  
  
  By following these steps, you should be able to resolve the error message 01631 and successfully assign the user group to the system.