How To Fix GL450 - Enter user exit name in accordance with the naming convention

SAP Error Message - Details

• Message type: E = Error

• Message class: GL - FI-SL Rollup

• Message number: 450

• Message text: Enter user exit name in accordance with the naming convention

What causes this issue?

You have entered a user exit that does not conform to the naming
convention. The first letter of a user exit must be either 'S' (standard
exit) or 'U' (user exit). You can define the remaining characters as you
wish.

System Response

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

How to fix this error?

Please enter a correct name for the user exit.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message GL450 - Enter user exit name in accordance with the naming convention ?

  The SAP error message GL450, which states "Enter user exit name in accordance with the naming convention," typically occurs when a user attempts to create or modify a user exit in the SAP system, but the name provided does not conform to the required naming conventions set by SAP.
  Cause:
  The error is caused by one or more of the following reasons:
  
  Invalid Naming Convention: The user exit name does not follow the prescribed format. SAP has specific rules for naming user exits, which usually include:
  
  The name must start with a specific prefix (e.g., Z or Y for custom developments).
  The name must be alphanumeric and may include underscores.
  The name should not exceed a certain length (typically 30 characters).
  
  
  Special Characters: The name may contain special characters or spaces that are not allowed.
  Existing Names: The name may already be in use or conflict with existing SAP objects.
  
  Solution:
  To resolve the GL450 error, follow these steps:
  
  Check Naming Convention: Ensure that the user exit name adheres to the SAP naming conventions. It should:
  
  Start with Z or Y.
  Be alphanumeric (letters and numbers only).
  Avoid special characters and spaces.
  Be unique and not conflict with existing names.
  
  
  Modify the Name: If the name you entered is invalid, modify it to comply with the naming rules. For example, if you entered My_Exit!, change it to Z_MY_EXIT.
  Consult Documentation: Refer to SAP documentation or guidelines for user exit naming conventions to ensure compliance.
  Test the Change: After modifying the name, try to save or activate the user exit again to see if the error persists.
  
  Related Information:
  
  User Exits: User exits are predefined points in the SAP system where custom code can be added to enhance or modify standard functionality without modifying the original SAP code.
  Naming Conventions: SAP has specific naming conventions for various objects (like tables, programs, function modules, etc.) to avoid conflicts and ensure clarity.
  Transaction Codes: You can use transaction codes like SE80 (Object Navigator) or SE37 (Function Module) to manage user exits and check existing names.
  
  If you continue to experience issues after following these steps, consider reaching out to your SAP Basis or development team for further assistance.