CPA or Cost Per Action is a metric for how much an advertiser pays per desired action on a site, such as submit a form or purchase an item.
Definition CPA or Cost Per Action is a metric for how much you pay per desired action on a site. CPA is calculated, by dividing the total cost of the advertising campaign by the total number of leads/sales. CPA is a powerful metric that allows you to quantify how much you pay search engines for each lead or sale they generate using that medium. Desired actions can include anything from a sale to a form submission or information request. A low CPA means you’re getting more conversions per your budget. A high CPA means something is going wrong in your ads.
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