Why the store migration failed and show 0 product(s) migrated?

Use the store migration in the App store for product migration. If the migration fails, the specific failure reason will be displayed. If it displays Successfully migrated 0 product(s), you need to confirm are there any products in your Shopify store. If there are products in your Shopify store, you need to check whether the Admin API Permissions in your Shopify store enable the Products read access.