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

01643 - Overview

• 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.

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 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