Enhanced Conversions
Also known as: Enhanced Conversions for Web, Enhanced Conversions for Leads
A Google Ads feature that improves conversion measurement by sending hashed first-party data, such as email or phone, captured at conversion. Google matches this against signed-in accounts to recover conversions that cookies alone miss, all using irreversible hashing so raw personal data is never shared.
Key Takeaways
- Enhanced Conversions is a Google Ads feature that improves measurement by sending hashed first-party data captured at conversion.
- Data such as email or phone is irreversibly hashed before it leaves the browser, so raw personal information is never shared.
- Google matches the hashed data against signed-in accounts to recover conversions that cookies alone would miss.
- More complete conversion signals feed smart bidding, which can improve optimization and reporting accuracy without extra spend.
- Match rates depend on capturing correctly formatted fields on the conversion page, not after it loads.
How It Works
When a visitor completes a conversion, Enhanced Conversions collects fields you already gather, such as email or phone, and hashes them with a one-way algorithm in the browser. Only the hashed values are sent to Google, which compares them against hashed data from signed-in Google accounts to confirm a match that a cookie may have dropped.
Because it relies on data you own, Enhanced Conversions works alongside Conversion Tracking and strengthens it as First-Party Data becomes the durable foundation for measurement.
It also complements privacy controls. When Consent Mode governs whether tags fire, Enhanced Conversions still passes hashed signals only where consent allows, helping recover attribution within the boundaries of your conversion window and user permissions.
Why It Matters
As third-party cookies fade, Enhanced Conversions recovers attribution that would otherwise vanish, feeding smart bidding more complete signals. Advertisers typically see more conversions credited without changing spend, which sharpens optimization and reporting accuracy.
Example
An ecommerce store sees fewer conversions credited as browsers block cookies. It turns on Enhanced Conversions and passes the hashed customer email from its order confirmation page. Google matches some of those hashes to signed-in accounts and restores conversions that would otherwise have gone unattributed, giving smart bidding a fuller picture of which campaigns actually drove sales.
Common Mistake
Passing unhashed or poorly formatted fields, or capturing the email after the conversion page loads. Match rates collapse when data is missing on the confirmation event or field formatting is inconsistent.
Frequently Asked Questions
Is Enhanced Conversions privacy safe?
It is designed to be. Personal fields like email are hashed with a one-way algorithm before leaving the browser, so Google receives only irreversible hashes, never raw data. You should still collect consent and follow applicable privacy rules.
Why are my Enhanced Conversions match rates low?
Common causes are missing or unhashed fields, inconsistent formatting, or capturing the email after the confirmation page loads. Make sure clean, correctly formatted first-party data is available on the actual conversion event.
Do Enhanced Conversions increase my ad spend?
No. The feature recovers conversions that were happening anyway but going unmeasured. Advertisers typically see more conversions credited at the same spend, which can sharpen bidding and reporting rather than raising costs.