Before you can run any paid ads or boost posts on Facebook, you’ll need to Certify Compliance.
In the final stage of preparing an ad or boost, a notification will appear at the very top or bottom of your window and ask you to Certify Compliance. Click “Agree” or “Certify Compliance,” and you’re good to go—now, and for all ads and boosts in the future.
Any ads or boosts made before certifying compliance will not automatically run once you do so. You’ll have to go through and manually do them again.