Honestly ridiculous this is still not finished. Come on Intuit... as others have said, this is GAP 101. An estimate is not a sale, nor does not allocate inventory, or link to relevant purchase orders. It is in no way an acceptable work around / practice to invoice for an item that has yet to be made or delivered. Some of our items take 3 or 4 months from the time the order is placed, to the time it is delivered. We cannot have all of these ridiculous partial invoices / estimates hanging out there. It would create a total mess.