All unpaid orders sit in your account until their order status changes to paid, and then production begins. 

Both your Sales and Order Tracking pages will display any unpaid orders, but your Unpaid Orders page bulks them together to see exactly which orders are waiting on payment. Using this page you can quickly pay for one, multiple, or all unpaid orders. 

Use the check boxes to select which orders you'd like to pay, then use the drop down menu below to select your payment method and click Pay for selected orders. 

Once paid, the order status will change to Paid and it will enter production.