How To Fix 01630 - The entered user name &1 contains characters that are not recommended.

SAP Error Message - Details

• Message type: E = Error

• Message class: 01 -

• Message number: 630

• Message text: The entered user name &1 contains characters that are not recommended.

What causes this issue?

The entered user name &V1& contains characters that are not permitted by
the system Customizing (see SAP Note 1731549).

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

System Response

How to fix this error?

Contact your system administrator.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 01630 - The entered user name &1 contains characters that are not recommended. ?

  The SAP error message "01630 The entered user name &1 contains characters that are not recommended" indicates that the username you are trying to create or use contains characters that are not allowed or recommended by SAP standards. This can happen during user creation or modification in the SAP system.
  
  Cause:
  The error is typically caused by the inclusion of special characters, spaces, or other non-alphanumeric characters in the username. SAP has specific rules regarding the format of usernames, which usually allow only certain characters.
  Recommended Characters for Usernames:
  
  Alphanumeric characters (A-Z, a-z, 0-9)
  Underscore (_)
  The username should not start with a number.
  The username should not contain spaces or special characters (e.g., @, #, $, %, etc.).
  
  
  Solution:
  
  Check the Username: Review the username you are trying to enter. Ensure it adheres to the SAP naming conventions.
  Modify the Username: If the username contains any disallowed characters, modify it to use only the recommended characters.
  Use a Different Username: