How does an accountant find out whether the Purchase Order has been emailed to the supplier?

How does an accountant find out whether the Purchase Order has been emailed to the supplier?

This is how an accountant can check if a Purchase Order has been sent to the supplier:
  1. Go to Xero Accounts > Purchases > Purchase Orders.
  2. For each approved Purchase Order that was sent to the supplier, there is the status Sent in the respective field.