The Auto Update Cart Functionality is for any online business that uses online shopping carts. The functionality is especially useful for online stores that have customers who frequently change what’s in their shopping carts before checking out. Online shoppers who want to enjoy the experience will enjoy using this custom functionality because it eliminates the need for an update cart button, web browsers will be able to see their shopping cart automatically updates. This improves your conversion rates and abandoned cart rates. The shopping cart page will update qty of products in the shopper’s cart without the shopping needed to do extra steps.