Your client needs to measure campaign performance without third-party cookies. Which Chrome and Android Privacy Sandbox API will help them do this?

The Attribution Reporting API allows advertisers to measure conversions (like purchases or sign-ups) that occur after an ad click or view, without relying on third-party cookies. It provides aggregated, privacy-preserving reports that help understand campaign performance while limiting individual user tracking. The Topics API is for interest-based advertising, allowing browsers to infer user interests from browsing history without identifying individuals. The Protected Audience API (formerly FLEDGE) is for remarketing and custom audience solutions. The First-Party Set API helps organizations declare related domains as a single "first-party" for cookie management, but doesn't directly address campaign attribution without third-party cookies.