Currently many other website builders like Eventbrite, Squarespace, Shopify, Wordpress, Wix, and Woocommerce are all members of Facebooks new Shops API.
Facebook Shops API allows you to integrate your Ecommerce store with your Facebook page. This allows you to post your products on Facebook either automatically or with just one click.
Automation for Dynamic Retargeting ads is a highly desired functionality for agencies running ecom ads and ecom website clients.
This has been added to the Ecommerce beta