This document will be modified depending on if the users ware keeping stock in their own warehouse or utilizing third party public warehouse services. In either case, this document will provide the warehouse with instructions on what needs to be shipped, when and who will be picking it up.
If utilizing lot level inventory tracking, then the inventory release form will inform the warehouse specifically which lots should be pulled to satisfy this delivery.
If you are storing product in your own warehouse, then the warehouse location (bin locations) on each product will be displayed as well so warehouse personnel will know where to pull the goods.