What are Enhanced Conversions in Google Ads?

Enhanced Conversions is a Google Ads feature that sends hashed first-party customer data (email, phone, name, address) alongside your standard conversion tags. Google matches this data against signed-in users to attribute conversions that would otherwise be lost to iOS restrictions, cookie blocking, and Safari ITP.

Is Enhanced Conversions GDPR and CCPA compliant?

Yes – Enhanced Conversions uses hashing (SHA-256) before any data leaves your site. Google only receives one-way hashed data and cannot reverse it to identify individuals. You must have appropriate consent from users to collect and use this data, which is typically covered by your standard analytics consent.

Do I need to change my privacy policy for Enhanced Conversions?

You need to ensure your privacy policy discloses that you share hashed customer data with Google for advertising measurement. Most existing policies that mention "Google Analytics" or "ad measurement" already cover this. We review your policy as part of the setup and flag any gaps.

How is Enhanced Conversions different from server-side tracking?

Enhanced Conversions is a client-side feature that supplements your existing Google Tag – it sends hashed user identifiers alongside conversion events. Server-side tracking moves the entire tagging infrastructure to a server. They are complementary: server-side improves data collection, Enhanced Conversions improves matching accuracy.

What data does Enhanced Conversions send to Google?

Enhanced Conversions can send email address, phone number, first name, last name, street address, city, state, and postal code – but only what is available at conversion. All data is hashed with SHA-256 before sending. Google uses the hash for matching only and cannot decode it.

How long does Enhanced Conversions setup take?

Standard setup takes 3–7 days: data layer audit, tag configuration (via Google Tag or GTM), QA in Tag Assistant, and conversion verification in Google Ads. More complex setups with custom checkout flows or CRM integrations may take up to 2 weeks.

Will Enhanced Conversions improve Smart Bidding?

Yes. Smart Bidding relies on conversion data quality. More attributed conversions – especially from iOS users and those who cleared cookies – give Google's algorithm better signals. Most clients see 10–25% improvement in Target CPA efficiency within 4–6 weeks after Enhanced Conversions is fully active.

Can Enhanced Conversions work without changing my website code?

It depends on your setup. If customer data is already in your data layer or accessible via CSS/DOM scraping, GTM-based Enhanced Conversions requires no code changes. If not, we recommend adding a few data layer pushes on your confirmation/thank-you pages – a minor dev task.

Google Ads Attribution

Enhanced Conversions Setup

Recover the 20–40% of Google Ads conversions lost to iOS restrictions and cookie blocking. Send hashed first-party data – GDPR-safe, privacy-first, and 25% more attributed conversions.

Get Free Attribution Audit See Process →

◉ ENHANCED CONVERSIONS – ACTIVE

+28%

Avg Conv Recovery

78%

iOS Attribution Fixed

18%

CPA Improvement

>50%

Match Rate Target

Attribution Accuracy89%

iOS Coverage78%

Smart Bidding Signal Quality88%

Standard Conversion Tags Miss 20–40%

Browser restrictions silently strip conversion data. Enhanced Conversions patches the gaps with hashed first-party matching.

✕Without Enhanced Conversions

iOS users' conversions go unattributed
Safari ITP wipes click IDs before conversion
Ad blockers prevent Google Tag from firing
Smart Bidding trains on incomplete data
CPL appears higher than actual performance
Budget wasted on audiences that convert but aren't tracked

✓With Enhanced Conversions

First-party data matches conversions Google Tag missed
Signed-in Google users matched via email hash – no cookie needed
iOS and Safari conversions recovered via user matching
Smart Bidding trains on 20–40% more conversion signals
True CPL visible – optimize toward real performance
GDPR-safe: only SHA-256 hashed data leaves your site

How Enhanced Conversions Recovers Attribution

First-party hash matching fills the gap where browser cookies fail.

User Converts on Your Site

Purchase or lead form – email, phone captured at conversion

→

Data Hashed Client-side

SHA-256 hash created before any data leaves your site

→

Google Matches Signed-in User

Google matches hash against signed-in Google account history

→

+25% More Attributed Conversions

Recovered conversions flow into Smart Bidding signals

Before vs After Enhanced Conversions

Attributed Conversions

Before65%

After89%

iOS Conversion Recovery

Before0%

After78%

Smart Bidding Signal Quality

Before55%

After88%

Data Flow

How Enhanced Conversions Matches Users

Your Website

User completes purchase / form

SHA-256 Hash

Email/phone hashed client-side – irreversible

Google Ads Tag

Hashed data sent alongside conversion ping

Google's Matching Engine

Hash compared to signed-in Google account history

Attribution Recovered

Conversion credited to correct campaign / keyword

What We Set Up

⚡

Enhanced Conv. for Web

Real-time hashed data sent at checkout/form-submit – recovers browser-blocked conversions.

⚡

Enhanced Conv. for Leads

CRM lead data uploaded to Google Ads after close – matches revenue back to campaigns.

⚡

GTM Implementation

Configuration via Google Tag Manager – minimal dev work, no hardcoded scripts.

⚡

Google Tag Implementation

Direct Google Tag setup for sites without GTM.

⚡

Data Layer Setup

Push hashed customer data to the data layer on confirmation pages.

⚡

Consent Mode Integration

Enhanced Conversions fires conditionally based on consent signals.

⚡

Match Rate Optimization

Maximize match rate by providing all available data fields.

⚡

Smart Bidding Calibration

After go-live, monitor Smart Bidding performance and adjust targets.

Our 14-Day Setup Process

Step 1 of 4Days 1–2

Days 1–2

Audit & Data Mapping

Audit current Google Ads conversion setup and identify first-party data available at conversion points.

Google Ads conversion action audit

Thank-you / confirmation page data inventory

Data layer variable mapping

Consent mode compatibility check

You Get: Data mapping document + implementation plan

What You Get

Conversion Audit Report

Current attribution gaps, estimated recovery potential, and priority implementation order.

Live Enhanced Conversions

Fully configured and verified Enhanced Conversions across all conversion actions.

QA Verification Report

Tag Assistant screenshots, hash output verification, and Google Ads diagnostics.

Performance Baseline

30-day before/after comparison showing attributed conversion lift and CPA improvement.

Frequently Asked Questions

What are Enhanced Conversions?▾

Enhanced Conversions sends hashed first-party customer data (email, phone) alongside your Google Ads conversion tags. Google matches this hash against signed-in users to attribute conversions lost to iOS restrictions, Safari ITP, and cookie blocking.

How much can Enhanced Conversions recover?▾

Most advertisers see 15–30% more attributed conversions. High-iOS-traffic verticals (e-commerce, mobile apps) can see 40–50% recovery. The lift depends on how much of your audience is affected by browser privacy restrictions.

Is it GDPR/CCPA compliant?▾

Yes. All data is hashed with SHA-256 before leaving your site. Google cannot reverse the hash – it's used for matching only. You need standard advertising consent in your privacy policy, which most sites already have.

What's the difference between Enhanced Conversions for Web vs Leads?▾

For Web fires in real time at purchase/form-submit on your site. For Leads uploads CRM data after lead close – Google matches the closed lead back to the original ad click to show true revenue attribution. We set up both.

Will it improve Smart Bidding?▾

Yes. Smart Bidding trains on conversion data quality and volume. More attributed conversions – especially from iOS users – give Google's algorithm better signals. Most clients see 10–25% CPA improvement within 4–6 weeks post-setup.

Do I need to change my website code?▾

Usually minor or none. If customer data is in your data layer, GTM-based setup requires no code changes. If not, we recommend small data layer pushes on confirmation pages – typically a 30-minute dev task.

How long does setup take?▾

Standard setup: 3–7 days. Audit, GTM configuration, QA in Tag Assistant, and Google Ads diagnostics verification. Complex setups with custom checkout flows or CRM integrations may take up to 2 weeks.

What data fields can Enhanced Conversions use?▾

Email (most impactful), phone number, first name, last name, street address, city, state, postal code. You only need to send what you have – email alone provides 60–70% of the match rate benefit.