The Quick ship option can be used several different ways
Non-Inventoried Shipping: items not kept track of
Inventory Shipping: items from inventory that are shipped
Drop Shipping/3rd Party Vendor Shipping: If you utilize a 3rd party vendor like VGM or McKesson for shipments
Open the order in which you need to ship/complete, select the blue plus sign from the top right and select quick ship
Select the type of shipping you wish to use NON INVENTORIED, INVENTORY, or DROP SHIP.