DELIVERY ORDERS:

Delivery orders show the stock moves made from the shop to the customer. They are attached to a sales order. When the customer has been installed, the system creates a sales order showing the products, quantities, and so on but every SO is attached to a delivery order. This can be used to track the moves of the products assigned to a customer.

When moves are stuck on waiting availability maybe when it should be on another status, you can click on check availability/ Force availability to deliver the order.