Magento 2 migration planning
Planning, implementing, testing and deploying a migration to Magento 2 can take a substantial amount of time. So the earlier you start, the more time you have to get everything right. Now is the time to migrate your online business to a brand new Magento 2 platform.
Magento 2 migration includes four components: data, extensions and custom code, themes, and customizations.
Step 1: Create a migration plan
Before any code is written, the stakeholders, internal team, and external team have to sit down and map out the process so everyone is on the same page. The more details you write down, the more time you’ll save on development and post-deployment.
Step 2: Prepare the testing environment
It is highly recommended to perform each step of migration and develop all related projects in a separate environment (on an allocated server) so that your current store can continue operating without downtime.
Step 3: Install extensions and custom development
This is where we should take the migration plan with the mapped extensions and install the corresponding Magento 2 extensions .
Step 4: Magento Data migration
The themes for the Magento 1.x and Magento 2.x platforms are incompatible. It is possible to copy your current theme for Magento 1.x to Magento 2, but this will require some elbow grease, and it is highly recommended updating the design because so many more features are available in Magento 2.
So how to migrate Magento 1 to Magento 2 smoothly? Read this guide, https://elogic.co/blog/magento-1-to-magento-2-migration-guide/.