The delivery order (custom advice note) shows the customer the scope of delivery. It forms the basis for invoicing.
Two types of delivery notes must be managed in a warehouse: On the one hand, the L. must be compared with the incoming goods when the goods are received, and on the other hand, L., which are printed out by the warehouse management system, are included with the goods deliveries.
L. are documents that must be kept in accordance with § 257 HGB.

Source: logipedia / Fraunhofer IML