How To Fix 01858 - User master comparison is globally deactivated (see long text)

01858 - Overview

• Message type: E = Error

• Message class: 01 -

• Message number: 858

• Message text: User master comparison is globally deactivated (see long text)

What causes this issue?

The user master comparison has been globally deactivated with the switch
AUTO_USERCOMPARE in table PRGN_CUST (see also SAP Note 511200, section
"Solution", part C, point 3).

System Response

No changes have been made to profile assignments for users.

How to fix this error?

Start the user master comparison in transaction SU01 with the pushbutton
"Compare User Master Record", using transactions PFCG or PFUD, or with
the reports RHAUTUPD_NEW or PFCG_TIME_DEPENDENCY.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

01858 - Details

• The SAP error message "01858 User master comparison is globally deactivated" typically indicates that the user master comparison process, which is essential for synchronizing user data between different systems (like between a central system and its clients), has been disabled in the system settings.
  
  Cause:
  The primary cause of this error is that the user master comparison feature has been globally deactivated in the system configuration. This can happen due to administrative decisions or system settings that prevent the synchronization of user data across different clients or systems.
  
  Solution:
  To resolve this issue, you need to enable the user master comparison feature. Here are the steps to do this:
  
  
  Access the SAP GUI: Log in to your SAP system.
  
  
  Transaction Code: Enter transaction code SU01 to access the User Maintenance screen.
  
  
  Check User Settings: You can also check the settings in transaction SU10 for mass user maintenance.
  
  
  Global Settings: To enable the user master comparison globally, you may