Facebook Ads has added something new to their ads metrics, Relevance Score. As is shown in the image above, Relevance Score is, “A 1 to 10 score based on how your ad is performing with the selected audience. A higher score indicates a lower cost.” Being that this is a new metric, we have yet to test its relevance to the performance of our ads.
For example, will the relevance score trump click-through rates or have any correlation with conversions? We will continue testing this and provide an update once we know more based on data.