How To Fix TK203 - Object &1 &2 is in reserved namespace for package &3

TK203 - Overview

• Message type: E = Error

• Message class: TK - Transport Organizer

• Message number: 203

• Message text: Object &1 &2 is in reserved namespace for package &3

What causes this issue?

Object name &V1& &V2& belongs to a name range protected in table TRESN.
It can only be used in package &V3&.

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?

Enter &V3& as the package.
If object &V1& &V2& is not in this package, choose a different object
name.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message TK203 - Object &1 &2 is in reserved namespace for package &3 ?

  The SAP error message TK203 indicates that an object (like a function module, class, or other development object) is in a reserved namespace for a specific package. This typically occurs when you are trying to create or modify an object in a namespace that is reserved for SAP or other specific purposes, which is not allowed for custom development.
  
  Cause:
  
  Reserved Namespace: The object you are trying to create or modify is in a namespace that is reserved for SAP or other specific applications. SAP has certain namespaces (like /SAP/, /ABAP/, etc.) that are not available for customer use.
  Package Restrictions: The package you are working with may have restrictions on the types of objects that can be created or modified within it.
  
  
  Solution:
  
  Check Namespace: Verify the namespace of the object you are trying to create or modify. Ensure that it is not in a reserved namespace.
  Use Custom Namespace: If you are developing custom