The Backordered Sales Orders Tab Page displays the status “B” (backordered) sales order lines for the selected inventory item. Backordered sales order lines are lines that have schedule dates within the current scheduling window, but which do not have any inventory allocated to them. If you allocate inventory to a backordered sales order line, the line status should change to status O. The Backordered Sales Orders Tab Page displays both type S (sales order) and type (L) loaner sales order lines. Type Q (quote) sales order lines are not displayed as they do not reserve inventory and the system does not allocate to them.