Items added to a Delivery note without an associated sales invoice are not deducted from Inventory.
Sometimes we send a quantity of a certain product(s) to a retailer and later issue a sale invoice based on the quantity that was sold by said retailer(not the total delivered), what remains unsold is then returned, this is offered to encourage sales.
Currently, using delivery notes does not reflect a change in inventory stock of said product, is this intended ? Technically product is not sold yet, but its not in stock either.
If we send products using a sales invoice, then it is very likely that later we will need either to edit the invoice or create a journal entry for whatever quantity that will be returned, which seems not very elegant for a large number of orders.