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

KW398 - Overview

• 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.

KW398 - Details

• 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