How To Fix 01634 - Reference user &2: No authorization for group &1 for role &3, system &4

01634 - Overview

• Message type: E = Error

• Message class: 01 -

• Message number: 634

• Message text: Reference user &2: No authorization for group &1 for role &3, system &4

What causes this issue?

Reference user &V2& has the role assignment &V3& for system &V4&. You
are not authorized to change this role assignment for users in user
group &V1&.
Background
By entering a reference user for a user, the user is granted the
authorizations of the reference user. These authorizations are withdrawn
from the user when you remove this reference user.
The system checks whether the user administrator is allowed to manually
enter and remove these authorizations using role and profile
assignments. If the check fails, the assignment of the reference user
cannot be changed.

System Response

The reference user's 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.

01634 - Details

• The SAP error message "01634 Reference user &2: No authorization for group &1 for role &3, system &4" indicates that a user is attempting to access a role or authorization group for which they do not have the necessary permissions. This error typically arises in scenarios involving user roles, authorizations, and security settings within the SAP system.
  
  Cause:
  
  Missing Authorizations: The user (reference user &2) does not have the required authorizations for the specified authorization group (&1) associated with the role (&3) in the specified system (&4).
  Role Assignment Issues: The role may not be properly assigned to the user or the user may not be part of the necessary authorization group.
  Profile Issues: The user’s profile may not include the necessary authorizations to access the specified role or group.
  Transport Issues: If the role was recently transported from another system, it may not have been properly assigned or activated in the target system.
  
  
  Solution:
  
  
  Check User