Addon to CS-Cart and Multi-Vendor protects you to set the same product code to different products. Every product in shop has its code, that is used during shopping or checking availability. If code typed during creating or editing product exists in shop, it won't be changed and warning will be displayed.
Extension to CS-Cart and Multi-Vendor allows you to create promotion that adds products to cart, according to the customer's order.
Addon to CS-Cart and Multi-Vendor allows you to integrate your store with SmartSupp chat.