Field help (SOQMDL) 

This delivery method is used to define the information related to the transport and delivery.  It describes the manner in which the goods will be sent to the customer (this information is used notably in the Intrastat exchange of goods declaration). It is managed in the Delivery methods table. This information is initialized with the delivery method entered in the order header but it can be modified on the line if the order delivery method is not set to the value Ship order complete. If the delivery address is modified on the order line, the delivery method will then be reassigned by the value mentioned on the delivery address.