Use the appropriate command button on the Main or the Detailed Purchase Order form.
Once you have completed adding items to a Purchase Order you can print it or email it directly to the Supplier. If you have a license you can also send the orders electronically via Pacstream.
You should DEACTIVATE/Lock all Purchase Orders as you send them to prevent changes being made that can cause confusion subsequently. If the Supplier does not have a valid email address you will be prompted to edit their contact details to provide it. Otherwise you can print the purchase order and send it that way.