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

SAP Error Message - Details

• 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.

Smart SAP Assistant

• What is the cause and solution for SAP error message TR121 - No header entry exists for the subobject & ?

  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 transport request exists and is correctly configured. You can do this by using transaction code SE09 or SE10 to view the transport requests.
  Recreate Transport Request: If the transport request is missing or corrupted, consider recreating it. Ensure that all necessary objects are included in the new request.
  Check Object Types: Ensure that the subobject you are trying to transport is valid and corresponds to an existing transport request. You may need to check the object type and its configuration.
  Authorization Check: Ensure that the user has the necessary authorizations to access and manage transport requests. You may need to consult with your SAP security team to verify user roles and permissions.
  Transport Directory: Check the transport directory for any inconsistencies or issues. Sometimes, issues in the transport directory can lead to errors in transport management.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error. SAP frequently releases notes that provide fixes or workarounds for known issues.
  
  Related Information:
  
  Transaction Codes: SE09 (Transport Organizer), SE10 (Transport Organizer - Extended), STMS (Transport Management System).
  SAP Documentation: Refer to the official SAP documentation for transport management for more detailed information on managing transport requests and troubleshooting common issues.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  
  If the problem persists after trying the above solutions, it may be necessary to involve your SAP Basis team or SAP support for further investigation.