Why are the order numbers in notifications I get via email sometimes out of order or missing?

The IndieMade system creates an order, and gives it a number,  whenever someone with a product in his or her cart starts to check out. However the customer may not actually complete the checkout until days or even weeks later, or may abandon the cart altogether. You only get emailed when the order is complete and fully paid for, so the order numbers are sometimes not sequential.

You can see the status of all orders, including ones in checkout, by visiting the orders page in your dashboard and selecting "all orders" in the status pulldown.