The first step to start the migration process is to set up your Source Store. Select the according Source Cart type from the drop-down list.
​Once you select the correct source cart type, instructions specific to that platform will appear at the bottom of the page.
You can follow those instructions to complete the connection setup.
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In this step, you will select what data to migrate. You can import entities like products, customers, and orders, and customize the migration with Additional options and advanced attributes Mapping.
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After selecting all of the required settings, click on "Next to continue.
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The migration process may take a few minutes or longer, depending on how much data your Source Store has. When you finish the process, you'll see a success message on your screen.