What is Facebook CPA?
CPA metrics measures what you pay every time your target audience engages with your website through a Facebook ad. This metric covers numerous sub-metrics like page likes, lead generation, link clicks, landing page visits, app installations, and more—it depends on which action you are aiming for and which one you set Facebook advertising to track.
In addition, measuring your CPA helps you track your click-through rate (ctr), cost per click (CPC), and more, as well as helping you budget your ad spending through your Facebook page. Ultimately, this KPI shows you how well your ad connects with your target audience and what conversion rate you achieve within the demographics you are reaching.