The Purchasing tab has two sub-tabs that display PO information for this item. The Orders tab has a list of all purchase orders for this item not yet closed to purchase history. You can see at a glance how many are on each PO, what the price is, when the PO is due, and the open, issued or received status of each PO. The user can view or edit any PO and modify, issue, receive, apply Accounts Payable entries and close the PO from this screen.
Read the Purchase Orders manual topic for more information.