Apps10 UPD 16

Customer is currently using Int Purch Trans and the Available Qty is showing the total inventory in the order taking site and the internal supply site.

1. Is the Available Qty field on a Customer Order Line supposed to show: 1) only the inventory on the order taking Site, 2) only the inventory on the supplying Site, or 3) the inventory on all Sites?
2. Does this value vary based on the Supply Code used?