When inventory level in Dear Inventory = "0" then remove the item from POS on next atomated "synch".
This eliminates possibility of 'selling' an item that doesn't exist.
Use case is when the cashier has to manually key in an item due to scanning issues. Incorrectly entering a stock code that is out of stock will not show the item.
It seems like the inventory still shows in POS even though its been sold and no more exist.