From April 24 to June 24, 2017, star ratings from selected Facebook business pages reviews and ratings section will appear below your business’s name in a small percentage of ads appearing in Newsfeed. Star ratings will only appear when the average star rating is 4 stars or higher and when there are at least 5 reviews.
It seems that myself and a few other advertisers we know have been granted early access to Facebooks beta testing of star ratings in ads. As there is little other information provided, there will be an update in the coming days, but we would love to hear your thoughts on this new feature and if you have already been granted early access.
From the email we received from Facebook, the goal of star ratings is being tested to find out if showing star ratings increases conversion rates from ads.
If you haven’t received the email but want to see if you’ve been included, navigate to your Page Settings > General.