How To Fix /SCWM/RF_EN389 - Cannot unassign HUC; assignment made by TM

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCWM/RF_EN -

• Message number: 389

• Message text: Cannot unassign HUC; assignment made by TM

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SCWM/RF_EN389 - Cannot unassign HUC; assignment made by TM ?

  The SAP error message /SCWM/RF_EN389 Cannot unassign HUC; assignment made by TM typically occurs in the context of SAP Extended Warehouse Management (EWM) when there is an attempt to unassign a Handling Unit (HU) that has been assigned by Transportation Management (TM). This error indicates that the system is preventing the unassignment because the Handling Unit is linked to a transportation process.
  Cause:
  
  TM Assignment: The Handling Unit (HU) is currently assigned to a transportation order or process in SAP TM, which means it is being managed by the transportation module.
  Data Integrity: The system enforces data integrity rules to ensure that HUs that are part of a transportation process cannot be unassigned in EWM without first addressing the TM assignment.
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Check TM Assignment: Verify if the Handling Unit is indeed assigned to a transportation order in SAP TM. You can do this by checking the relevant transportation documents or orders in the TM module.
  
  
  Unassign in TM: If you need to unassign the HU, you must first do so in the TM module. This may involve:
  
  Cancelling or modifying the transportation order.
  Unassigning the HU from the transportation order.
  
  
  
  Re-attempt Unassignment in EWM: Once the HU is unassigned from TM, you can go back to EWM and attempt to unassign the HU again.
  
  
  Consult Documentation: If you are unsure about the process, refer to the SAP documentation for both EWM and TM for detailed steps on handling HUs and transportation assignments.
  
  
  Check for Custom Logic: If your organization has custom logic or enhancements in place, ensure that these are not interfering with the standard process.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes in both EWM and TM that can help you navigate and manage HUs and transportation orders.
  SAP Notes: Check for any SAP Notes related to this error message for potential patches or updates that may address known issues.
  User Roles and Authorizations: Ensure that you have the necessary authorizations to perform actions in both EWM and TM, as restrictions may lead to errors.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or a technical consultant who specializes in EWM and TM integration.