Browser and cookie restrictions mean Google often cannot connect a conversion back to the click that drove it. So reported conversions undercount, and because Smart Bidding optimizes to what it can see, a measurement hole quietly becomes a performance hole.
What enhanced conversions does
Enhanced conversions sends securely hashed first-party data, an email captured at conversion, from your site or CRM, which Google matches to signed-in users. It recovers conversions that would otherwise go uncounted, without exposing raw personal data.
Why it is worth the setup
More matched conversions means two wins at once: your reporting gets closer to the truth, and bidding gets a stronger signal to optimize on. Rising CPA is often a measurement problem in disguise, and recovering conversions can improve delivery without touching bids.
Where it sits in the stack
Deploy it with proper consent through Consent Mode v2, and pair it with server-side tracking for resilience. It is one of the highest-return hours you can spend on an account, and many accounts have never checked whether it is on. Since June 2026, enhanced conversions for web and leads is a single on/off setting in Google Ads, and accounts that had accepted the customer data terms were switched over automatically, so confirm it is on and that the terms are accepted.
Common questions
What do enhanced conversions do?
They send hashed first-party data with conversions so Google can match more of them to ad clicks, recovering conversions lost to cookie limits and giving Smart Bidding a stronger signal.
Are enhanced conversions privacy-safe?
The data is hashed before it leaves the browser or server, so Google receives a matching key rather than raw personal details. It should still be deployed with proper consent via Consent Mode.