How To Fix /SCMTMS/TRQ311 - &1 transportation mode &2 can no longer be changed

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCMTMS/TRQ -

• Message number: 311

• Message text: &1 transportation mode &2 can no longer be changed

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SCMTMS/TRQ311 - &1 transportation mode &2 can no longer be changed ?

  The SAP error message /SCMTMS/TRQ311 indicates that the transportation mode for a specific transportation request cannot be changed. This typically occurs in the context of SAP Transportation Management (TM) when certain conditions are met that prevent modifications to the transportation mode.
  Cause:
  
  Status of the Transportation Request: The transportation request may be in a status that does not allow changes. For example, if the request has already been confirmed or processed, the system may lock certain fields, including the transportation mode.
  Dependencies on Other Objects: The transportation mode might be linked to other objects (like freight orders or shipments) that have already been created or processed, making it impossible to change the mode.
  Configuration Settings: There may be configuration settings in the SAP system that restrict changes to the transportation mode under certain conditions.
  
  Solution:
  
  Check the Status: Review the status of the transportation request. If it is in a completed or locked status, you may need to revert it to a previous status or create a new transportation request.
  Review Dependencies: Check if there are any dependent objects (like freight orders or shipments) that are preventing the change. If so, you may need to adjust or delete those objects first.
  Consult Configuration: If you have access to the configuration settings, review them to see if there are any restrictions in place regarding the transportation mode. You may need to consult with your SAP Basis or TM configuration team.
  Create a New Transportation Request: If changing the transportation mode is not possible, consider creating a new transportation request with the desired transportation mode.
  SAP Notes and Support: Check for any relevant SAP Notes that might address this issue. If the problem persists, consider reaching out to SAP support for further assistance.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes in SAP TM, such as /SCMTMS/PRT for managing transportation requests.
  Documentation: Review the SAP Help Portal for documentation on transportation management and error handling.
  User Roles and Authorizations: Ensure that you have the necessary authorizations to make changes to transportation requests.
  
  By following these steps, you should be able to identify the cause of the error and take appropriate action to resolve it.