How To Fix 01645 - You are not authorized to assign user group &1 to roles

01645 - Overview

• Message type: E = Error

• Message class: 01 -

• Message number: 645

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

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message 01645 - You are not authorized to assign user group &1 to roles ?

  The SAP error message "01645 You are not authorized to assign user group &1 to roles" typically indicates that the user attempting to assign a user group to roles does not have the necessary authorizations to perform this action. This error is related to the authorization checks in SAP, which are designed to ensure that only users with the appropriate permissions can make changes to user roles and groups.
  
  Cause:
  
  Insufficient Authorizations: The user lacks the necessary authorizations in their profile to assign the specified user group to roles.
  Role Configuration: The user group may be restricted in the role configuration, preventing certain users from assigning it.
  Profile Issues: The user's authorization profile may not include the necessary objects or permissions related to user management.
  
  
  Solution:
  
  
  Check User Authorizations:
  
  Review the user's authorization profile to ensure they have the necessary permissions to assign user groups to roles.
  The relevant authorization objects to check include:
  S_USER_AUTH (User Master Maintenance)
  S_USER_GRP (User