Cost per action (CPA) marketing is revolutionizing the way businesses approach digital advertising. But exactly what does CPA are a symbol of in marketing? Simply put, CPA refers to “cost per acquisition”—a performance-based pricing model where advertisers only pay when a specific action, say for example a sale, sign-up, or https://hackmd.bangumi.org/_1u6zzyvQ5S79r_VS2xwSw/