How To Fix KW398 - Functions in SAP name space cannot be deleted

SAP Error Message - Details

• Message type: E = Error

• Message class: KW - CO-ABC Activity-Based Costing

• Message number: 398

• Message text: Functions in SAP name space cannot be deleted

What causes this issue?

The function you chose already exists in SAP-namespace and therefore
may not be deleted. If you do not want this function to be shown while
maintaining templates, merely remove it from the corresponding function
hierarchy.

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?

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 KW398 - Functions in SAP name space cannot be deleted ?

  The SAP error message KW398, which states "Functions in SAP name space cannot be deleted," typically occurs when you attempt to delete a function module that resides in the SAP namespace. In SAP, the namespace is divided into two main categories: the SAP namespace (which includes standard SAP objects) and the customer namespace (which is reserved for custom developments).
  Cause:
  The primary cause of this error is that you are trying to delete a function module that is part of the SAP standard namespace (which usually starts with "SAP" or is otherwise reserved for SAP's own development). SAP does not allow the deletion of standard objects to ensure system integrity and stability.
  Solution:
  
  
  Check Namespace: Verify if the function module you are trying to delete is indeed in the SAP namespace. You can do this by checking the name of the function module. If it starts with "SAP" or is otherwise designated as a standard SAP object, you cannot delete it.
  
  
  Use Custom Namespace: If you need to create a similar function or modify existing functionality, consider creating a new function module in your custom namespace (usually starting with "Z" or "Y"). This allows you to develop and delete objects without restrictions.
  
  
  Modification Instead of Deletion: If your intention is to modify the functionality of the function module, consider using enhancement techniques such as user exits, BAdIs (Business Add-Ins), or creating a wrapper function that calls the original function module.
  
  
  Transport Requests: If you are working in a development environment and need to manage transport requests, ensure that you are following the correct procedures for managing objects in the SAP namespace.
  
  
  Consult Documentation: Always refer to SAP documentation or consult with your SAP Basis or development team for best practices regarding object management in the SAP system.
  
  
  Related Information:
  
  Function Modules: Function modules are reusable pieces of code in SAP that can be called from other programs or function modules.
  Namespaces: Understanding the difference between SAP and customer namespaces is crucial for SAP development and management.
  Enhancement Techniques: Familiarize yourself with enhancement techniques in SAP to extend or modify standard functionality without deleting standard objects.
  
  If you continue to face issues or have specific requirements, consider reaching out to your SAP support team or consulting SAP's official documentation for further assistance.