How To Fix /SCWM/DIST_EQUIP056 - Not allowed to move top HUs onto towing vehicle during unassigning step

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCWM/DIST_EQUIP -

• Message number: 056

• Message text: Not allowed to move top HUs onto towing vehicle during unassigning step

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SCWM/DIST_EQUIP056 - Not allowed to move top HUs onto towing vehicle during unassigning step ?

  The SAP error message /SCWM/DIST_EQUIP056 indicates that there is an issue with moving handling units (HUs) onto a towing vehicle during the unassigning step in the Extended Warehouse Management (EWM) module. This error typically arises when the system detects that the handling units (HUs) that are currently assigned to a towing vehicle cannot be moved or unassigned in the way that is being attempted.
  Cause:
  
  Incorrect Unassigning Process: The system may not allow the movement of top-level handling units (HUs) onto a towing vehicle if they are still assigned to another process or if the unassigning process is not being followed correctly.
  Hierarchy Issues: The handling units may be part of a hierarchy where the top-level HUs cannot be moved until the lower-level HUs are unassigned or moved first.
  Configuration Settings: There may be specific configuration settings in the EWM system that restrict the movement of HUs in certain scenarios.
  Status of HUs: The status of the handling units may not allow them to be moved (e.g., they may be locked or in a status that prevents movement).
  
  Solution:
  
  Check HU Status: Verify the status of the handling units involved. Ensure that they are not locked or in a status that prevents them from being moved.
  Follow Correct Process: Ensure that you are following the correct unassigning process. If the top-level HUs are to be unassigned, make sure that any lower-level HUs are unassigned first.
  Review Configuration: Check the configuration settings in the EWM system related to handling unit movements and towing vehicles. Adjust settings if necessary to allow the desired movement.
  Use Transaction Codes: Utilize relevant transaction codes (like /SCWM/TO_CREATE or /SCWM/TO_CONFIRM) to manage the handling units and ensure they are in the correct state for movement.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidelines on handling units and towing vehicles in EWM.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error message or provide additional troubleshooting steps.
  EWM Configuration: Familiarize yourself with the configuration settings in EWM related to handling units, towing vehicles, and the unassigning process.
  User Roles and Permissions: Ensure that the user attempting the action has the necessary permissions to perform movements and unassignments in the system.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or a consultant who specializes in EWM for further assistance.