The Sales tab has two sub-tabs that display sales information for this item. The Orders tab has a list of all outstanding sales orders for this item, not yet closed to sales history. You can see at a glance how many are on each order, are they backordered, what the price is, when the order is expected, and the open, processed or shipped status of each order. You can view or edit any order and modify, process, ship and invoice the order from this screen.
Read the Sales Orders manual topic for more information.