This does not work!!!!!!! I have watched every available video and I have followed all the provided instructions. There are several serious flaws and misinformation regarding purchase orders in Quickbooks Online. I see instructions in Quickbooks Online help that indicate you can "copy to purchase order" from an estimate, there is no such button as described in the instructions. When sending a purchase order to a vendor, which Quickbooks Online does allow you to do, there are no SKU's showing on the purchase order.........this is necessary to communicate to a vendor what you are ordering especially when most operate off of SKU's. Additionally, the PO shows list prices not the cost price that is what you pay the vendor, therefore, the bill from the vendor will always be different than the amount on the PO. This then causes additional work as you have to go back and change all of the amounts to reflect what you are actually being billed. I eliminated a management system so that I could control my inventory directly in Quickbooks Online and cease doing double work, instead I am now doing more work than I was with the management system. Additionally, when I copy to a bill it closes out the purchase order and does not place unreceived items on backorder as indicated. It moves everything over from the purchase order then closes the purchase order. This is all very aggravating. I have spent many frustrating hours, when I should be focused on other things, trying to find a workaround and there simply isn't one that works efficiently.