Each order has a few different dates on it to help you keep track of production and payments. Here are a list of those dates and how they should be used:
Production Due Date
This date is when the order will be produced, it should be before the Customer Due Date.
Customer Due Date
This date is otherwise known as your In Hands Date. It's when your customer needs the order by.
When the order is invoiced to the customer will be denoted by this date. In other words, you are telling the customer payment is expected.
Payment Due Date
This date represents when payment on the invoice is due. Any date after this is overdue.