Messenger ads are ads that appear on the home tab in Messenger. 1.3 billion people around the world spend time on Messenger interacting and conducting business with the brands they love. Now with Messenger ads, they have an opportunity to discover experiences directly on their Messenger home screen.
After you post to your Page, you can “boost” that boost, which turns it into an ad. It's a fast and simple way to reach more people with your content. For people seeing your ad, the only visual difference between an organic (unpaid) post and a boosted post (paid) is the addition of a “Sponsored” label.