Integrate your site with Facebook Page
You can easily create a Shop tab on your Facebook page. To enable Facebook compatibility mode you need to add an extra “headless” parameter to your site’s URL, eg: https://yoursite.com/shop/?headless=1.
Custom Shop Page
You can create a custom shop page for facebook, and set it as Facebook Tab homepage, eg: https://yoursite.com/my-facebook-home-page?headless=1
In Appearance > Menus you can also create a separate menu for your Facebook shop tab.