Delivery Order
A plain issue document: the user types the origin number and the lines, and Save takes the goods out of stock. It is not on the delivered Inventory menu; sales deliveries are made on Item Issue To Sales Order.
Every field in plain words
The header has Transaction Date, Posting Date, Transaction Journal, Movement, Site, Warehouse, Origin Number (required, typed), Posting Status and Notes. The lines have Item No (offered from manufacturing order lines), Name, Item Variant, Special Indicator, Stock Category, Stock Status, Site, Warehouse, Storage Location, Movement Unit, Movement Quantity, Batch/Serial Number with its dates, and Line Text.
Nothing on this screen checks the quantity against the origin: only the stock on hand is checked.
What happens on Save
Stock goes down at its average cost and the voucher posts. A posted delivery order can only be reversed. See How stock documents work.