Bing Ads rolled out callout and review extensions last week. The new ad extensions are available in all Bing Ads markets, with the exceptions of Hong Kong and Taiwan. The ad shown above features both of these new extensions.
Advertisers can add up to 20 callouts in their campaigns and ad groups and must have a minimum of two callout extensions for them to display.
One thing to note: Bing says the format in which callouts show can vary. In the ad above, there are actually two lines of callout extensions showing — one with dot separators (starts with “Free Cancellation”) and one with dash separators (starts with “The 20 best hotels in Chicago, IL”).
Reviews for review extensions must come from “reliable, well-established and trusted sources.” The review must appear on the review landing page — and advertisers are not charged for clicks on those links. The reviews can be paraphrased, but they must accurately represent the original review.
The ad above — with two lines of callouts and extended sitelinks — has a review extension enabled with a review from the World Travel Awards.
You can set up both of these from the ad extensions tab in the Bing Ads UI.