the serialized items are not available?
This is not yet an automated feature of UA. However, a quick workaround will help establish serialized inventory from a negative purchase order. a) Make your vendor also a customer, and create a standard order for him. b) Create the order for the inventory to be relieved, but for a zero dollar amount. c) In Order Fulfillment, you will be able to remove the serialized inventory as normal. d) The Billing Wizard will not pick it up, as it is a zero dollar order.