The Connector Bridge file is the best way to connect your shopping carts for starting migration. In order to accomplish it, the "mp_connector" folder should be uploaded to the root directory of the PrestaShop store.
Fill the Source Store URL field and download the "Connector Bridge file" from the migration dashboard
Then unzip it and upload the entire mp_connector folder into your PrestaShop store’s root folder using FileZilla Client or cPanel.
If you have any problems using the mp_connector, read how you can fix this issue or contact our support team.
Note:
You can skip this step if you created the migration through the Shopify App-the Target Store will be connected automatically.
Otherwise, you need to fill fields on the image
*When the mp_connector is uploaded to your web server, the migration tool gains permission to access and read data from your store.