How To Fix /SCWM/HUFUNCTIONS191 - Handling unit &1 is already assigned to outbound delivery &2

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCWM/HUFUNCTIONS -

• Message number: 191

• Message text: Handling unit &1 is already assigned to outbound delivery &2

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 /SCWM/HUFUNCTIONS191 - Handling unit &1 is already assigned to outbound delivery &2 ?

  The SAP error message /SCWM/HUFUNCTIONS191 indicates that a handling unit (HU) is already assigned to an outbound delivery. This typically occurs in the context of warehouse management and logistics when trying to assign a handling unit that is already linked to another outbound delivery.
  Cause:
  
  Duplicate Assignment: The handling unit you are trying to assign is already linked to a different outbound delivery.
  System Configuration: There may be system settings or configurations that prevent the reassignment of handling units once they are linked to an outbound delivery.
  Incomplete Processing: The outbound delivery process may not have been completed, leading to the handling unit being locked or still in use.
  
  Solution:
  
  Check Current Assignments: Verify which outbound delivery the handling unit is currently assigned to. You can do this by using transaction codes like HU02 (Display Handling Unit) to see the details of the handling unit.
  Reassign Handling Unit: If you need to reassign the handling unit, you may need to first unassign it from the current outbound delivery. This can typically be done through the appropriate transaction or function module, depending on your system configuration.
  Complete the Outbound Delivery: If the handling unit is still in use, ensure that the outbound delivery process is completed. This may involve confirming the delivery or performing any necessary actions to finalize the delivery.
  Consult Documentation: Review SAP documentation or your organization's internal guidelines for handling units and outbound deliveries to ensure compliance with processes.
  Contact Support: If the issue persists, consider reaching out to your SAP support team or consulting with an SAP expert to investigate further.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as HU02 (Display Handling Unit), VL02N (Change Outbound Delivery), and VL03N (Display Outbound Delivery).
  SAP Notes: Check for any SAP Notes related to handling units and outbound deliveries that may provide additional insights or solutions.
  User Authorization: Ensure that you have the necessary authorizations to perform actions related to handling units and outbound deliveries.
  
  By following these steps, you should be able to resolve the error and manage handling units effectively within your SAP system.