It is highly recommended that you enable Free Shipping Bar's app embed on your Shopify Online Store 2.0 theme.
Why it is recommended?
1. The bar will load much faster.
2. It is needed if you would like to target bar to display only to certain products, or display only to certain customers.
How to do it?
1. Go to theme customization page.
2. Select App embeds.
3. Enable FSB Core Snippet and click Save button