The Delivery Orders feature is available in the Sales Pack extension.
A delivery order is a document that authorizes and records the dispatch of products to a customer and lists the items to be delivered, including their quantities and relevant delivery details.
A delivery order is usually created from a sales order. Multiple delivery orders can be created from a single sales order. This is common, for example, when goods are picked from different warehouses.
Documentation
For more detail information on Delivery Orders, see the documentation.