Why did I receive multiple order confirmations and invoices for one checkout?

When you use Checkout All to purchase items from multiple programs in your cart, each program is placed as a separate order. You’ll receive one order confirmation email per program, and each program’s order has its own invoice. Orders from different programs are not combined into a single confirmation email or invoice.

For example, checking out with items from three programs creates three separate orders, with three order confirmation emails and three separate invoices.