How To Fix GT121 - Compare module contains empty nametabs for & &

SAP Error Message - Details

• Message type: E = Error

• Message class: GT - Database utilities

• Message number: 121

• Message text: Compare module contains empty nametabs for & &

What causes this issue?

This error should not occur during normal operation (<> test
operation).
Please contact the SAP hotline.

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?

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message GT121 - Compare module contains empty nametabs for & & ?

  The SAP error message GT121, which states "Compare module contains empty nametabs for & &," typically occurs in the context of the SAP Transport Management System (TMS) or during the transport of objects between different SAP systems. This error indicates that there are empty name tables in the comparison module, which can prevent the transport of certain objects.
  Cause:
  
  Empty Name Tables: The error suggests that the comparison module is trying to compare objects, but it has encountered empty name tables. This can happen if the objects being transported do not exist in the target system or if there are inconsistencies in the transport directory.
  Transport Directory Issues: There may be issues with the transport directory or the transport request itself, such as missing objects or incomplete transport requests.
  Configuration Issues: There could be configuration issues in the TMS settings or in the transport layer that lead to this error.
  
  Solution:
  
  Check Transport Request: Verify the transport request to ensure that all necessary objects are included and that there are no missing components. You can do this by checking the transport logs and the objects included in the request.
  Recreate the Transport Request: If the transport request is found to be incomplete or corrupted, consider recreating it. This involves creating a new transport request and adding the necessary objects again.
  Check TMS Configuration: Review the TMS configuration to ensure that all systems are correctly defined and that there are no inconsistencies in the transport routes.
  Use Transaction SE01: Use transaction SE01 (Transport Organizer) to analyze the transport request and check for any inconsistencies or errors.
  Check for Missing Objects: Ensure that the objects you are trying to transport exist in the target system. If they do not, you may need to create them or transport them separately.
  Consult SAP Notes: Look for relevant SAP Notes that may address this specific error. SAP frequently releases notes that provide solutions or workarounds for known issues.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE01 (Transport Organizer), SE09 (Workbench Organizer), and SE10 (Customizing Organizer) for managing transport requests.
  SAP Documentation: Refer to the official SAP documentation for Transport Management System for detailed guidance on managing transports 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 beneficial to reach out to SAP support for further assistance.