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

SAP Error Message - Details

• Message type: E = Error

• Message class: HUFUNCTIONS - Messages from FB with HU services without global t.

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

  The SAP error message HUFUNCTIONS191 indicates that a handling unit (HU) is already assigned to an outbound delivery. This typically occurs when you attempt to assign a handling unit that is already linked to another outbound delivery or when there is an attempt to reassign it incorrectly.
  Cause:
  
  Duplicate Assignment: The handling unit you are trying to assign is already associated with a different outbound delivery.
  Incorrect Process Flow: The handling unit may have been processed in a way that it is still linked to a previous delivery.
  System Configuration: There may be issues with the configuration of handling units or outbound delivery processes in your SAP system.
  
  Solution:
  
  
  Check Current Assignments:
  
  Use transaction code HU02 (Display Handling Unit) to check the current status and assignments of the handling unit. This will help you identify which outbound delivery it is currently assigned to.
  
  
  
  Unassign the Handling Unit:
  
  If the handling unit needs to be reassigned, you may need to unassign it from the current outbound delivery. This can typically be done using transaction code VL02N (Change Outbound Delivery) or HU02 to remove the assignment.
  
  
  
  Review Delivery Process:
  
  Ensure that the handling unit is not in a status that prevents it from being reassigned (e.g., it should not be in a delivered or completed status).
  
  
  
  Check for Errors in Previous Processes:
  
  Investigate if there were any errors in previous processes that might have caused the handling unit to remain assigned incorrectly.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or consult with your SAP support team for specific configurations or settings that might affect handling unit assignments.
  
  
  
  Related Information:
  
  Handling Units (HUs): In SAP, handling units are used to manage and track physical items in logistics. They can be pallets, boxes, or any other packaging units.
  Outbound Delivery: This is a document that represents the goods being shipped to a customer. It is crucial for logistics and shipping processes.
  Transaction Codes:
  
  HU02: Display Handling Unit
  VL02N: Change Outbound Delivery
  VL03N: Display Outbound Delivery
  
  
  SAP Notes: Check for any relevant SAP Notes that might address specific issues related to handling units and outbound deliveries.
  
  If the problem persists after following these steps, it may be necessary to involve your SAP support team or consult with SAP directly for further assistance.