An advertiser is experiencing conversion discrepancies due to modern browser limitations on third-party cookies. Why does transitioning to the Google tag (gtag.js) improve their measurement accuracy compared to legacy IFRAME or pixel tags?
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Correct answer: It sets first-party cookies on the advertiser's domain, providing a more robust foundation for unified conversion tracking..
Why this is the answer
The Google tag is the recommended format for Floodlight measurement in Campaign Manager 360 . It supports more durable conversion measurement because it operates from the advertiser’s site and can use first-party cookie behavior instead of relying only on legacy third-party tag formats. This improves continuity for attribution, reporting, and optimization when browser restrictions limit third-party cookie availability. The Floodlight configuration still remains the container for conversion tracking settings.
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