Does the date affect this- i.e., if an invoice is dated for yesterday, does the inventory get taken out as of yesterday? or is this determined by the ship date? We have preorders for items that were prepaid and so need to be invoiced but the items themselves have not actually left inventory (which would leave us with a negative qty). Is there a way for QB to take this into consideration? (money coming in at a certain date, and inventory leaving at a different date) Or are we just stuck with negative inventory?