It is recommended to create an invoice from a delivery.
Go to "Orders" - "Delivery".
Click on the "Despatch advice number" for the delivery to be invoiced.
Click "Create invoice draft".
A pop-up window appears.
Click "Create new invoice draft".
A new pop-up window appears.
Click, and enter a "New invoice number".
Click "OK".
An "Invoice draft" will be created.
