How To Fix /SCWM/UI128 - Lower-level assignment to TU &1/&2 cannot be deleted (&3 &4)

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCWM/UI -

• Message number: 128

• Message text: Lower-level assignment to TU &1/&2 cannot be deleted (&3 &4)

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SCWM/UI128 - Lower-level assignment to TU &1/&2 cannot be deleted (&3 &4) ?

  The SAP error message /SCWM/UI128 Lower-level assignment to TU &1/&2 cannot be deleted (&3 &4) typically occurs in the context of SAP Extended Warehouse Management (EWM) when there is an attempt to delete a lower-level assignment to a Transportation Unit (TU) that is not allowed due to certain constraints or conditions.
  Cause:
  
  Active Processes: The Transportation Unit (TU) may be involved in an active process, such as a delivery or a transfer order, which prevents its deletion.
  Dependencies: There may be dependencies or relationships with other objects (like handling units or stock) that are preventing the deletion.
  Status of TU: The status of the TU might not allow for deletion. For example, if the TU is already confirmed or has been processed in some way, it cannot be deleted.
  System Configuration: There may be specific configurations or settings in the system that restrict the deletion of lower-level assignments.
  
  Solution:
  
  Check Active Processes: Verify if the TU is currently being used in any active processes. If so, you may need to complete or cancel those processes before attempting to delete the TU.
  Review Dependencies: Look for any dependencies or relationships that might be preventing the deletion. This could include checking for associated handling units or stock items.
  Change Status: If the TU is in a status that does not allow deletion, you may need to change its status or perform necessary actions to make it eligible for deletion.
  Use Transaction Codes: Utilize relevant transaction codes in SAP EWM to check the status and details of the TU. For example, you can use /SCWM/TO for transfer orders or /SCWM/TU for transportation units.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidelines on handling TUs and their assignments.
  Contact Support: If the issue persists, consider reaching out to your SAP support team or consulting with SAP experts for further assistance.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes related to EWM, such as /SCWM/TO, /SCWM/TU, and others that may help in managing TUs and their assignments.
  SAP Notes: Check for any relevant SAP Notes that may address known issues or provide additional guidance on this error message.
  User Roles and Permissions: Ensure that the user attempting to delete the TU has the necessary permissions to perform this action.
  
  By following these steps, you should be able to identify the cause of the error and take appropriate actions to resolve it.