Enhanced Conversions

What Are Enhanced Conversions?

In a world without third-party cookies, Enhanced Conversions is one of the most important levers for maintaining your Google Ads performance. It closes the growing measurement gaps caused by cookie blockers and consent rejections, and gives Smart Bidding the data it needs for accurate bid optimization. Setup is free and should be mandatory for every Google Ads advertiser.

Enhanced Conversions is a Google Ads feature that improves conversion tracking by transmitting hashed first-party data (first-party data) such as email addresses, phone numbers, or customer data. This allows Google to attribute conversions even when cross-device or cross-browser tracking is not possible — for example, when users switch browsers or browse in incognito mode. Enhanced Conversions increase tracking accuracy and thereby improve the basis for AI-driven bidding strategies.

Technically, Enhanced Conversions works by hashing sensitive data (SHA-256 encryption) directly in the browser or on the server before transmitting it to Google. Google can match the hashed values against hashes in Google accounts (Gmail, Google Account) to attribute conversions without storing raw data. This is GDPR-compliant and works in privacy-friendly browsers like Safari.

In practice, online store owners should activate Enhanced Conversions to improve tracking accuracy — especially important for smart bidding and Performance Max campaigns. Data quality is critical: the more complete and accurate the customer data, the better Google can attribute conversions. Enhanced Conversions are free and only require sharing first-party data already present on the website.