How Conversion Tracking Works
Conversion tracking connects ad interactions (clicks, views) to subsequent user actions. In Google Ads, you install a global site tag and event snippets that fire when conversions occur. In Meta Ads, the Pixel and Conversions API track events. When a user clicks your ad and later completes a conversion action within the attribution window, the platform credits that conversion to the ad. Each conversion action has a category (purchase, lead, signup), a value (revenue amount or estimated value), and a counting method (one per click or every occurrence).