How To Fix VL491 - Confirmation from WMS already performed; You cannot delete item &

SAP Error Message - Details

• Message type: E = Error

• Message class: VL -

• Message number: 491

• Message text: Confirmation from WMS already performed; You cannot delete item &

What causes this issue?

A goods issue or goods delivery was already posted in the decentralized
warehouse management system for the delivery. Therefore you cannot make
any changes to the delivery that affect the stock update.

System Response

The system does not allow deletion of items.

How to fix this error?

Posting the goods movement is still permitted for the delivery. You can
only cancel the delivery as the result of a business transaction.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message VL491 - Confirmation from WMS already performed; You cannot delete item & ?

  The SAP error message VL491 ("Confirmation from WMS already performed; You cannot delete item") typically occurs in the context of warehouse management and logistics processes. This error indicates that a confirmation for the item in question has already been processed in the Warehouse Management System (WMS), which prevents the deletion of that item from the delivery or document.
  Cause:
  
  WMS Confirmation: The item has already been confirmed in the WMS, meaning that the system has recorded that the item has been picked, packed, or otherwise processed.
  Document Status: The delivery document or related transaction is in a status that does not allow for modifications, such as deletion of items.
  Integration Issues: There may be issues with the integration between the SAP ERP and the WMS, leading to discrepancies in the status of the items.
  
  Solution:
  
  Check Confirmation Status: Verify the confirmation status of the item in the WMS. If the item has been confirmed, you may need to reverse or cancel that confirmation before attempting to delete the item.
  Review Document Status: Check the status of the delivery document. If it is already processed or completed, you may need to create a new document or adjust the existing one rather than deleting items.
  Use Transaction Codes: Use transaction codes like VL02N (Change Outbound Delivery) to check the details of the delivery and see if there are any options to adjust the items.
  Consult with WMS Team: If you are unsure about the confirmation process or how to reverse it, consult with your WMS team or the team responsible for warehouse operations.
  Error Handling: If the error persists, consider checking for any system notes or logs that might provide additional context on the issue. You may also want to check for any recent changes in configuration or processes that could have affected the WMS integration.
  
  Related Information:
  
  Documentation: Refer to SAP Help documentation for more details on handling WMS confirmations and delivery processing.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Training: Ensure that users involved in warehouse operations are trained on the processes and implications of confirmations in the WMS.
  
  By following these steps, you should be able to address the VL491 error and understand the underlying issues related to item deletion in the context of WMS confirmations.