Hi there Curios66,
It's important that your purchase orders are tracked correctly in your books. Quickbooks Online can help you create and send purchase orders from within the software so that you can easily place orders with your supplier. I can provide some information on how to close a purchase order.
In order to mark a purchase order as closed, it must be copied within a bill using the Copy to bill function. In order to do so, navigate to the Suppliers tab, then select your supplier in question, find your bill, then click on the drop-down menu located in the right column of the list, and Copy to the bill. This will create a new bill with the information of the purchase order included. Once this bill is saved, the purchase order will be marked as closed.
If you have any other questions, feel free to reach out here.
