E-commerce is the ability to buy and sell products online. E-commerce works on Exai through using the code widget and inserting code from an e-commerce site or the PayPal site into the code widget.
Most business would like a shopping cart on their site. You can manage your products through an e-commerce site such as Spark Pay or simply create a paypal button. When users click on this button, they are directed to pay pal where they can buy your products.