How To Fix /SCWM/RF_EN387 - Cannot unassign HUC; loading has started, unload HUC first

/SCWM/RF_EN387 - Overview

• Message type: E = Error

• Message class: /SCWM/RF_EN -

• Message number: 387

• Message text: Cannot unassign HUC; loading has started, unload HUC first

Self-Explanatory Message

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/SCWM/RF_EN387 - Details

• The SAP error message /SCWM/RF_EN387 Cannot unassign HUC; loading has started, unload HUC first typically occurs in the context of warehouse management, particularly when dealing with handling units (HUs) in the SAP Extended Warehouse Management (EWM) module. This error indicates that you are trying to unassign a handling unit (HU) that is currently involved in a loading process, which is not allowed until the loading is completed or the HU is unloaded.
  
  Cause:
  
  Loading Process Active: The handling unit you are trying to unassign is currently in the process of being loaded onto a transportation unit (like a truck or container).
  System Lock: The system prevents unassignment of HUs that are actively involved in a loading operation to maintain data integrity and avoid inconsistencies in inventory management.
  
  
  Solution:
  To resolve this error, you need to follow these steps:
  
  
  Check Loading Status: Verify if the handling unit is indeed in the process of being loaded. You can