Enhanced conversions improve the accuracy of advertiser's conversion measurement and lead to more powerful bidding. This feature supplements existing conversion tags by sending hashed first-party conversion data from their website to Google in a privacy-safe way. It uses a secure one-way hashing algorithm called SHA256 on the first-party customer data, such as email addresses, before sending it to Google. When a customer converts on the website, the advertiser may receive first-party customer data like an email address, name, home address, or phone number. This data is captured in the conversion tracking tags, hashed, and sent to Google in its hashed form. The hashed data is then matched against Google's hashed user data to report a conversion in the respective account. Benefits include recovering conversions that otherwise wouldn't have been measured, improving bidding optimization through better data, and ensuring privacy safety with the hashing of first-party customer data.

Customer Data Platforms (CDPs) also play an important role in integrating first-party data with Google Display Ads. By unifying customer data from sources like websites, CRMs, and offline systems, CDPs enable the creation of high-value segments that can be synced with Google Display Ads using features like Customer Match. This allows advertisers to use Google Display Ads as a coordinated step within broader customer journeys – ensuring consistent messaging across channels. CDPs also support enhanced conversion tracking and help manage user consent, enabling privacy-compliant audience targeting, measurement, and campaign activation at scale.

Ads Data Manager both integrates and activates first-party data by connecting sources like CRMs, CDPs, analytics tools, and cloud databases directly into Google Display Ads. Through a no-code interface, marketers can link customer data, map it to use cases like Customer Match or enhanced conversions, and activate it across campaigns – without repeated integrations or technical overhead. The platform supports privacy-first strategies by ensuring only consented data is used, while helping teams unify targeting, measurement, and optimization efforts from a single environment. As third-party cookies are phased out, Google Display Ads Data Manager becomes essential for leveraging first-party data efficiently and compliantly across the advertising lifecycle.