Once you have approved an order, there is still a chance to edit or cancel the order, but only before it is taken into production.

You can

• cancel the order via All Orders in the left-hand navigation of your Spreadconnect App
• change the shipping address before an order moves to In Production status. 
• adjust size or color of the product by going to: Order Details > Edit Order Items > Change Size / Color
  

Once an order moves to In Production there is no longer an option to edit the details of the order or cancel it. Spreadconnect will not refund orders that need to have details changed, or be canceled.