Entering a special product
When a customer orders an unusually large quantity of a product and you do not want to affect usage or stock levels, enter a stock product as a special product.
Note: We recommend that line items
            designated as Special also be tied to a purchase order or
            warehouse transfer. When the product is received in Purchase
               Receipt of Inventory Entry, it is not automatically allocated to the line
            unless the Order Type is
            something other than Stock.