Our migration process is well-developed. We begin by inspecting the health of your Magento 1 website and then map out the migration process making sure we take into account each extension, catalogue and product. We set up the Magento 2 website and then start migration while simultaneously stopping activity in your Magento 1 web store. We put the first website in maintenance mode while we recheck the data in your Magento 2 website. We keep the backups until we are sure that your new website is ready for launch.