Diagnosis
The shipment contains one or several items that refer to a deliverythat no longer exists.

System Response
If this shipment was generated by an external planning system, it ispossible that deliveries in the SAP system were deleted manually.
The confirmation for changes to this shipment made by the externalplanning system has not yet taken place.

Procedure
At the moment, you cannot process but only display the shipment.
Processing is not possible until the external planning system hasconfirmed this shipment and the relevant shipment item has beenremoved.