Apex is one of the most popular shoe retailer brands of Bangladesh. Previously their e-commerce site was built on the custom asp.net solution. They faced a lot of problems with the existing site like performance, inventory manages, discount manage, a payment module, shipping module, web site graphic and many others. They want to migrate their website to the nopCommerce. We start the migration from scratch based on nopCommerce 4.1. We integrate the POS system, New payment method (local vendor), new shipping method(local vendor), discount from the ERP, product price and quantity sync from the ERP and the most important is the performance of the site. The most important and interesting point is the whole system is automated. Admin just had to add the picture of the product, except this, everything is automatic that means from the product sync to confirm order, order status update all are automatic. Now their e-commerce site is able to handle a huge customer base without any performance penalty.