Why Your GA4, Google Ads, and Facebook All Show Different Conversion Numbers
GA4, Google Ads, and Facebook Ads will never report matching conversion numbers because each uses fundamentally different measurement methods. Meta credits a conversion if a user clicks within 7 days OR views an ad within 1 day. Google Ads uses its own click-based attribution. GA4 relies on sessions and its data-driven attribution model. These aren’t errors—they’re different philosophies measuring the same customer journey from competing perspectives. The solution isn’t reconciling these numbers but establishing a single source of truth: server-side tracking that captures events at your server before sending to all platforms, giving you one authoritative dataset you control.