While BBIS does have places for adding metadata in page properties, it doesn't offer an easy way to add social media sharing information for a page.  For example, we may have a specific image or description we want the page to pass to Facebook etc. and this can't be done within the CMS interface.  Rather we are accomplishing this through an unformatted text and images part with special code for every page.

For additional reference:

The Open Graph protocol enables any web page to become a rich object in a social graph. For instance, this is used on Facebook to allow any web page to have the same functionality as any other object on Facebook.

http://ogp.me

Partner with Yoast SEO:

Next to Yoast SEO for WordPress, we’ve developed Yoast SEO for several other platforms in partnership with several other companies.

https://yoast.com/yoast-seo-platforms/