You get a "New order" email for each order, sent to your account's email address, with a link straight to the order. It arrives when an offline order is placed, or when an online (PayPal) payment is completed.

1. Pending: Waiting for payment. An offline order stays pending until you mark it paid. A PayPal order is pending if the shopper left before paying; it becomes paid if they finish, and you can delete it if they don't.
2. Paid: The money is in: paid through PayPal, or marked paid by you.
3. Fulfilled: You've shipped or delivered it.
4. Failed: PayPal did not complete the payment.
5. Refunded: The customer has been refunded.
   

Use the ⋯ menu on an order, in the Sales list or on the order itself:

1. Mark paid — for an offline order, once the customer has paid you. The customer is emailed a receipt.
2. Mark fulfilled — once a paid order has been shipped or delivered.
3. Mark refunded — records that you refunded the customer. It does not send money back: refund the customer the way they paid. For a PayPal order, refund it in your PayPal account; the order then turns Refunded by itself.
4. Invoice / Receipt — view the email the customer received, and send it again (see below).
5. Delete — removes the order for good.
   

Refunding or deleting an order does not put its items back in stock.

Both look like the order screen in Sales: the items, totals, customer details and payment details. They're sent from your own mailbox, using your Sender Details. If Sender Details aren't set up, no emails are sent. Orders still work normally.

To view or resend one, open the order's ⋯ menu and choose Invoice or Receipt. You'll see exactly what the customer received. The customer's email address is filled in; change it if they mistyped it, or enter it if it's missing, then click Send. If the email can't be sent, the reason is shown right there, for example missing Sender Details or a mail-server error.

No emails are sent when an order is fulfilled or refunded.