The order quantity is reserved from the item's available, on-hand inventory. The default value is taken from the field in . You can choose between the following options:

No reservation of inventory is made unless you make reservations manually in the Reservation (form).

Reserves items on stock for sales orders that will be delivered in the future. Before the order is delivered, you might receive a new sales order that is to be delivered before the first. The system will tell you that there is not enough stock available for the new order.

Works as , but with regard to BOMs, item reservation is controlled by master scheduling.