Lead-time in number of days required to deliver the goods to the ship-to customer. This field is initialized by the lead-time entered on the customer delivery address. This lead-time is suggested by default on the order lines corresponding to the delivery address of the order header when products are deliverable ones.
It is used to initialize the shipment date based on the requested delivery date. The modification of this lead-time triggers the recalculation of the shipment date based on the requested delivery date.