Inform you customer about the delivery date regarding their orders. Specify different delays. This module is in charge to compute a real date by using perpetual calendars to skip closed/non-working days Each product can be configured with its own delays (manufacturing, replenishing and origin). Each carrier hold its own delay and calendar.
Imagine you could add a tare weight to your customers' order based on the content. By content we mean a weight limit or a more complex scenario. Now orders reflect the true weight when preparing the shipment.