Creating one
Click New Purchase Order and fill in:
Then add lines — a product variant, how many, and what each unit costs.
The currency is fixed once the order is opened, because every line cost is priced in it. Choose it before you mark the order as ordered.
The lifecycle
A purchase order moves through a few states, and each one means something specific for your stock figures.
Use Mark as ordered once the order is placed with the supplier. That is the moment the goods start showing as on their way. Back to draft reverses it if you sent it too early.

