When you make your "Optimisation for ad delivery" choice for an ad set, you're telling us to get you as many/much of that result as efficiently as possible. (This may or may not be the same as your choice for "When you get charged".)

For example, if you optimise for link clicks, your ads are targeted to people in your audience who are most likely to click the ads' links.

Learn more about Facebook ad campaign structures and how to succeed when optimising for Conversions.

* Nguồn: Facebook