Orders includes all of the pay as you go orders that have been made which would include Smart Send campaigns, domain purchases and any preload credits for Triggered Drip campaigns.
Orders gives you a listing of each invoice (except for monthly subscriptions) that has been charged to your account. You can click on the individual invoices and download the PDFs. The order invoice includes the order ID, description, order date and invoice total.
Note: If the order is a Canadian Dollar purchase you’ll see the currency type of CA in the order total.