If the purchase order line is of delivery type Direct delivery, then the packing slip and invoice updates of the sales order line are produced by using the Purchase orderform. If you want to update part of the delivery of an order to a customer—for example, five items out of a total sales order quantity of 10—then this is done by entering 5in the Receive nowfield, and then updating the purchase order. The sales order line is subsequently updated. For more information, see About direct deliveries.