Data migration in Magento 2
Magento 2 won’t be backward compatible with Magento 1, so upgrading isn’t automatic. Moving your data from Magento 1 to Magento 2, including products, customers, orders, and configuration settings, takes additional work.
Media files, such as product images, category images, and downloadable products, can be migrated by simply copying them over. The file structure hasn’t changed, which makes moving these files from Magento 1 to Magento 2 straightforward.
Data stored in the database can be moved with a migration tool. It transfers data from Magento 1 to Magento 2 and makes sure everything ends up in the right place in the new database. The tool handles all standard Magento data. Once the initial migration is complete, but before the new version goes live, you can “freeze” the old store. From that point on, no one can change CMS pages, configuration settings, or other parts of the old store. The store itself keeps running as usual, and customers can still place orders. Store owners can also still edit orders and customer data, and those changes sync automatically to the Magento 2 store running in parallel. The tool can migrate roughly 1,000 products, 1,200 orders, or 15,000 customers per minute.
