How the calculation works
CPA = Ad spend ÷ Acquisitions
Worked example
If a campaign spends $900 and generates 30 tracked customers, CPA is $30.
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Average CPA
$30
Frequently asked questions
What counts as an acquisition?
Use the conversion that matters to your business, such as a purchase, qualified lead, booked call, or subscription.
How do I know if my CPA is acceptable?
Compare CPA with gross profit, customer lifetime value, refund rates, and other acquisition costs.
Why can platform CPA differ from my CRM?
Attribution windows, duplicate events, tracking loss, consent, and offline conversions can make platform and first-party records differ.