Once an order is placed on the website, the request is sent to one of the 3rd-party printers from all over the world. Orders can take a few days to be manufactured before they are shipped out, so in this time frame, the order's status is placed in “Pending” until shipped.
Once the order ships, the status will change from "Pending" to "To be paid" until it is paid out in the following pay cycle. After that, the sales status will change to "Paid."