How To Fix LT255 - Confirmation of transport was defined during source movement

SAP Error Message - Details

• Message type: E = Error

• Message class: LT - LE-WM: View or Table Maintenance Error Messages

• Message number: 255

• Message text: Confirmation of transport was defined during source movement

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message LT255 - Confirmation of transport was defined during source movement ?

  The SAP error message LT255 ("Confirmation of transport was defined during source movement") typically occurs in the context of warehouse management and logistics execution processes. This error indicates that there is a conflict or issue with the confirmation of a transport task that was defined during the source movement.
  Cause:
  The error can arise due to several reasons, including:
  
  Transport Task Conflicts: The transport task may have already been confirmed or partially confirmed, leading to inconsistencies in the system.
  Incorrect Movement Type: The movement type used may not be compatible with the expected operations, causing the system to reject the confirmation.
  Incomplete Data: Required data for the transport task may be missing or incorrectly entered, leading to issues during confirmation.
  System Configuration: There may be configuration settings in the warehouse management module that are not aligned with the current operations.
  
  Solution:
  To resolve the LT255 error, you can take the following steps:
  
  
  Check Transport Task Status: Verify the status of the transport task in question. If it has already been confirmed, you may need to reverse the confirmation or create a new transport task.
  
  
  Review Movement Types: Ensure that the movement type used for the source movement is appropriate for the operation you are trying to perform. If necessary, consult with your SAP configuration team to confirm the correct movement types.
  
  
  Complete Required Data: Ensure that all necessary data for the transport task is complete and accurate. This includes checking for any missing information that may be required for confirmation.
  
  
  Consult SAP Notes: Check the SAP Support Portal for any relevant notes or updates that may address this specific error. There may be patches or updates that resolve known issues.
  
  
  System Configuration Review: If the issue persists, review the configuration settings in the warehouse management module. Ensure that they are set up correctly for the processes you are trying to execute.
  
  
  Log Analysis: Analyze the system logs for any additional error messages or warnings that may provide more context about the issue.
  
  
  Contact SAP Support: If you are unable to resolve the issue, consider reaching out to SAP support for further assistance. Provide them with detailed information about the error and the steps you have already taken.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as LT03 (Create Transfer Order), LT12 (Confirm Transfer Order), and LT21 (Display Transfer Order) to manage transport tasks effectively.
  Warehouse Management Documentation: Review SAP documentation related to warehouse management and logistics execution for best practices and troubleshooting tips.
  User Training: Ensure that users involved in warehouse operations are adequately trained on the processes and systems to minimize errors.
  
  By following these steps, you should be able to identify the root cause of the LT255 error and implement an appropriate solution.