CPA stands for Cost Per Action, which is a metric used in online advertising to measure the cost incurred by advertisers for each desired action taken by a user. This action can vary depending on the campaign objective, such as a purchase, form submission, or app download. Unlike other advertising models, where advertisers pay for impressions or clicks, CPA focuses on the actual conversion or action taken by the user. It is a performance-based model that allows advertisers to track and optimize their campaigns based on the cost-effectiveness of each action.
