You don’t need to add any embed code for our app to work. Just make sure you add variants to the layout of the product page.
Our app needs this to show us where to place our options. Here are some links to show you how to do this on the different page builder apps.
If you need any more help adding the variants to the product page layout you can contact the developer for your page builder app.
You can also email Shopify Support to get you in contact with them.https://help.shopify.com/en/questions#/contact