This module shows related products in the Add to cart notification, Cart content and notification on the order landing page
CS-Cart's Auto Guest Registration: Order turns user, links past orders, generates account with email and password, auto-login post-successful order.
This module allows you to automatically assign, under certain conditions, users of a group to which discounts and promotions can be distributed
Credit Europe Bank - Virtual POS Payment Integration For CS-Cart allows your customers to pay in installments via card for the purchase on your store.
CS-Cart Endicia Shipping Label Generation allows store Admin to check Endicia account status, add Endicia postage, generate USPS shipping labels.
This module will allow You to automate the process of adding ads to your store on the website Avito.ru and flexible settings allow you to make the process as comfortable as possible.
Almost every setup has tips that will help you to navigate the module.