Magento ecommerce site for huge product database. More than 100 brand and 20 categories and lots of products are there in the site. As per client requirement we customize theme, product page, Custom Cart page create added postage charges in shipping method. We copy all the content in new site from the old one. We also transfer all the customer data to new one. We need to make sure that all the client data needs to be transfer successfully with their old transaction.