Following customer orders.
In e-commerce business, you need to know what your customer wants. Add a simple order confirmation, just to be sure. As more people prefer buying on mobile, a confirmation form optimized to their screen. Get rid of horizontal scroll, and increase customer satisfaction.
Interacting with customers.
Once they place the order, customers expect prompt delivery. Let customers track their purchases. Updating shipping locations of the delivery so that your customers know when to expect their order. This way, you can avoid misunderstandings and unfriendly support calls.
Every business needs customer feedback. In addition to your service, get delivery feedback as well. Was your delivery guy friendly, or did he perhaps have a bad day and rub it off on your customer? The more you know about yourself, the better you can serve your customers.