How To Fix VL166 - Delivery has already been confirmed by WM

SAP Error Message - Details

• Message type: E = Error

• Message class: VL -

• Message number: 166

• Message text: Delivery has already been confirmed by WM

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message VL166 - Delivery has already been confirmed by WM ?

  The SAP error message VL166 ("Delivery has already been confirmed by WM") typically occurs in the context of Warehouse Management (WM) when you attempt to perform an action on a delivery that has already been confirmed in the system. This can happen during processes such as picking, packing, or shipping.
  Cause:
  
  Duplicate Confirmation: The delivery has already been confirmed in the Warehouse Management system, and any further attempts to confirm or modify it are blocked to prevent inconsistencies.
  Status of Delivery: The delivery might be in a status that does not allow further processing, such as being fully confirmed or completed.
  System Configuration: There may be specific configurations in the WM module that restrict actions on deliveries that have been confirmed.
  
  Solution:
  
  Check Delivery Status: Verify the status of the delivery in the system. If it has already been confirmed, you may need to proceed with the next steps in the process rather than trying to confirm it again.
  Review Confirmation Logs: Look at the confirmation logs to see when and how the delivery was confirmed. This can provide insights into whether the confirmation was legitimate or if there was an error.
  Use Transaction Codes: Use transaction codes like VL03N (Display Outbound Delivery) to check the details of the delivery and its confirmation status.
  Reversal of Confirmation: If necessary and if your business process allows it, you may need to reverse the confirmation. This can typically be done through transaction codes like VL09 (Reversal of Goods Issue) or similar, depending on your specific scenario.
  Consult with WM Team: If you are unsure about the next steps or if the issue persists, consult with your Warehouse Management team or SAP support for further assistance.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions for common problems.
  Documentation: Review the SAP documentation for WM processes to understand the implications of delivery confirmations and how to manage them effectively.
  User Permissions: Ensure that you have the necessary permissions to perform actions on deliveries, as restrictions may lead to errors.
  
  By following these steps, you should be able to address the VL166 error and continue with your warehouse operations.