How To Fix STC_TM083 - Namespace '&1' is reserved for SAP; choose a different name

SAP Error Message - Details

• Message type: E = Error

• Message class: STC_TM - Task List Manager Messages

• Message number: 083

• Message text: Namespace '&1' is reserved for SAP; choose a different name

What causes this issue?

Changing or creating task list variant names starting with'&V1&' is not
permitted. Only SAP delivers these task list variants.

System Response

The system rejects creating or changing task list variant names starting
with '&V1&'.
'&WHAT_TO_DO&
Choose a different task list variant name.

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 STC_TM083 - Namespace '&1' is reserved for SAP; choose a different name ?

  The SAP error message STC_TM083 indicates that you are trying to use a namespace that is reserved for SAP. In SAP systems, namespaces are used to organize and manage objects, and certain namespaces are reserved for SAP's own use. When you encounter this error, it means that the namespace you are attempting to use is not available for custom development or third-party applications.
  Cause:
  The error occurs when:
  
  You attempt to create or modify an object (like a transport request, package, or development object) using a namespace that starts with a reserved prefix (e.g., /SAP/ or similar).
  The namespace you are trying to use is already taken or reserved for SAP's internal use.
  
  Solution:
  To resolve this error, you should:
  
  
  Choose a Different Namespace: 
  
  Select a custom namespace that does not conflict with SAP's reserved namespaces. Custom namespaces typically start with a prefix that is unique to your organization (e.g., /Z/ or /Y/).
  Ensure that the chosen namespace adheres to the naming conventions and is not already in use.
  
  
  
  Check Existing Namespaces:
  
  You can check the existing namespaces in your SAP system to ensure that the one you want to use is available. This can be done using transaction code SE03 (Transport Organizer Tools) or SE80 (Object Navigator).
  
  
  
  Register a Custom Namespace (if necessary):
  
  If your organization does not have a custom namespace yet, you may need to register one. This typically involves following the process defined by SAP for namespace registration, which may include filling out a request form and obtaining approval.
  
  
  
  Related Information:
  
  Namespace Naming Conventions: Custom namespaces usually start with /Z/ or /Y/ followed by a name that reflects the purpose of the objects within that namespace.
  SAP Notes: Check SAP Notes for any updates or specific guidelines related to namespaces and development objects.
  Transport Management: Understanding how transport requests and packages work in SAP can help you manage your development objects more effectively.
  
  By following these steps, you should be able to resolve the STC_TM083 error and continue with your development work in SAP.