How To Fix 01623 - User & does not exist; choose an existing user

01623 - Overview

• Message type: E = Error

• Message class: 01 -

• Message number: 623

• Message text: User & does not exist; choose an existing user

What causes this issue?

You created a new authorization and want to assign it to a user.

System Response

The system asks for the name of the user.

How to fix this error?

Enter the name of an existing user master record.

Error message extract from SAP system. Copyright SAP SE.

01623 - Details

• The SAP error message "01623 User & does not exist; choose an existing user" typically occurs when you are trying to perform an action that requires a user ID that is not recognized by the SAP system. This can happen in various contexts, such as when assigning a user to a role, trying to log in, or performing user-related transactions.
  
  Cause:
  
  Non-Existent User ID: The user ID you are trying to use does not exist in the SAP system.
  Typographical Error: There may be a typo in the user ID you entered.
  User Deactivation: The user ID may have been deactivated or deleted.
  Authorization Issues: The user may not have the necessary authorizations to access certain transactions or data.
  System Configuration: There may be issues with the configuration of user management in the SAP system.
  
  
  Solution:
  
  Verify User ID: Double-check the user ID you are entering for any typographical errors.
  Check User Existence:
  Use transaction code SU01 (User Maintenance) to