I have checked the Edit |location and the item is permitted at that location. The receipt has the item at the correct location but the message upon trying to edit it is saying that there is insufficient stock at another location for which it is not permitted.

The receipt has 11 items. 7 for the warehouse and 4 for the retail store. We can edit the 7 for the warehouse but are unable to edit the 4 for the retail store. We continually get the message that there is insufficient quantity in the warehouse, even though the receipt is saying for the retail store. If we try to change the location from the retail store to the warehouse, it tells us the item is not allowed at that location.