You can carry out a sale either with the serialized Finished Goods that you have produced, or with those you have in stock.
Go to Sales > Orders > New Order and fill in the client data and the serialized product you want to sell. You’ll also need to pick the inventory location you will be shipping from.
When you click on Ship, you will need to define which serial number you are shipping out, and by clicking on the serial number tab you can keep track of the serial numbers of the goods you shipped:
When you are done, you can close the sales order, which will make all fields strictly uneditable.