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Why does Google Ads show more conversions than GA4?

GA4 Google Ads discrepancy attribution model conversion counting

Quick Answer

Google Ads often shows more due to data-driven attribution crediting multiple touchpoints, cross-device matching via Google accounts, and view-through conversions. GA4's last-click model only credits the final interaction. Google Ads may also count conversions Google Ads influenced even if another channel closed.

Full Answer

Google Ads showing more conversions: Reason 1: Attribution model Reason 2: Cross-device Reason 3: View-through conversions Reason 4: Multi-touch credit Google Ads data-driven model gives partial credit to ads in the conversion path. GA4 last-click gives 100% to one source. Reason 5: Different conversion windows

  • Google Ads: 30-90 day click windows common
  • GA4: Depends on attribution settings How to reconcile: Compare both to backend truth: Higher Google Ads numbers don't mean it's wrong—just measuring differently.

Sources

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Cherry Tree by Seresa - https://seresa.io/seed/google-ads-ga4/ga4-vs-google-ads-gads-more-than-ga4