What Is Enhanced Conversions?
Enhanced Conversions is Google's feature that sends hashed first-party data (email, phone, name, address) alongside conversion events, so Google can match users across devices and browsers when cookies fail. It works for Web (via GTM) and for Leads (via API upload from the CRM).
Enhanced Conversions on a lead-gen account
A B2B account fires 400 lead form submissions a month in Google Ads. Cookie-only matching credits 260 to campaigns. Turning on Enhanced Conversions for Leads with hashed email lifts matched conversions to 355. Smart Bidding now trains on 36 percent more signal, and tCPA settles 18 percent lower over the next 4 weeks with the same budget.
Benchmarks
- Typical match uplift on web: 5 to 15 percent additional conversions attributed.
- Enhanced Conversions for Leads: often 30 to 50 percent uplift on CRM-tracked outcomes.
- Time to see Smart Bidding benefit: 2 to 4 weeks post activation.
Why it matters
Every conversion Google can attribute is a signal Smart Bidding can learn from. Enhanced Conversions is one of the two highest-ROI free upgrades on Google Ads in 2026 (the other is server-side tagging), and it closes the gap Consent Mode alone cannot.
Common mistakes
- 1.Passing un-hashed PII. Google rejects it and Enhanced Conversions never activates.
- 2.Turning on Enhanced Conversions for Web without capturing email at conversion. Nothing to send.
- 3.Skipping Enhanced Conversions for Leads on lead-gen accounts. It is where the biggest uplift lives.
- 4.Judging in the first 7 days. Smart Bidding needs 2 to 4 weeks to metabolise the extra signal.
Put Enhanced Conversions to work
Free calculators
Related services
FAQs about Enhanced Conversions
Enhanced Conversions vs Conversion API?
Same idea (server-side, hashed first-party data), different platform. Enhanced Conversions is Google's; CAPI is Meta's. Serious accounts run both.
Do I need Enhanced Conversions if I have Consent Mode v2?
Yes. Consent Mode recovers denied-consent signal; Enhanced Conversions improves granted-consent match rate. They stack, they do not replace each other.
Go deeper
Long-form reads that show Enhanced Conversions applied end to end.
Related terms
Google's consent signalling API; required in EEA for ad measurement.
Server-side event stream from your site/CRM to Meta or Google.
Google's ML bid strategies (tCPA, tROAS, Max Conv, Max Value).
Tag deployment container for firing pixels without code edits.
Running Tag Manager on your own server to improve match + control.
Customer data you collected yourself with consent; the strongest signal.
Google's ML model that distributes credit based on observed conversion paths.
Google audience built from your hashed first-party email/phone list.