How To Fix TR121 - No header entry exists for the subobject &

TR121 - Overview

• Message type: E = Error

• Message class: TR - Change and Transport System

• Message number: 121

• Message text: No header entry exists for the subobject &

What causes this issue?

You specified a new sub-object for which no header entry exists.

System Response

New sub-object rejected.

How to fix this error?

Before specifying a new sub-object, you must include it as an object at
the higher level.

Error message extract from SAP system. Copyright SAP SE.

TR121 - Details

• The SAP error message TR121 ("No header entry exists for the subobject &") typically occurs in the context of transport management, particularly when dealing with transport requests. This error indicates that the system is unable to find a header entry for a specific subobject, which can prevent the transport request from being processed correctly.
  Causes:
  
  Missing Transport Request Header: The transport request header for the specified subobject may not exist in the system. This can happen if the transport request was not created properly or if it was deleted.
  Incorrect Object Type: The subobject being referenced may not be valid or may not correspond to an existing transport request.
  Transport Request Corruption: The transport request may be corrupted or not properly configured, leading to inconsistencies in the transport management system.
  Authorization Issues: The user may not have the necessary authorizations to view or access the transport request or its components.
  
  Solutions:
  
  Check Transport Request: Verify that the