Apple's privacy-preserving mobile attribution framework that provides aggregate, anonymized conversion data to advertisers and publishers without exposing individual user-level tracking data — introduced as Apple's alternative to individual-level mobile attribution after App Tracking Transparency (ATT) restricted access to user-level identifiers (IDFA) on iOS devices. SKAdNetwork represents Apple's architectural response to the privacy vs. advertising attribution tension: traditional mobile attribution relied on device-level identifiers (IDFA) to track individual user journeys from ad click to app install to in-app purchase; SKAdNetwork replaces this individual-level data with aggregate conversion signals that are cryptographically signed by Apple, preventing falsification, but aggregated to protect individual privacy. How SKAdNetwork works: when a user clicks an affiliate or ad link and installs an app, the app registers the install with SKAdNetwork; after a privacy timer expires (24-72 hours), SKAdNetwork sends an aggregated conversion notification to the ad network or affiliate platform; the notification includes a conversion value (a numeric signal the app developer maps to in-app events) but not user-level data; the conversion is then attributed to the campaign or publisher source. Limitations for affiliate programs: delayed reporting (SKAdNetwork conversion notifications arrive 24-72 hours after conversion rather than in real-time); limited granularity (SKAdNetwork provides campaign-level aggregated data, not publisher-level individual attribution); conversion value mapping (mapping a 6-bit conversion value to the range of affiliate program conversion events requires thoughtful implementation). MMP integration: all major MMPs (AppsFlyer, Adjust, Branch) have built SKAdNetwork support into their platforms, helping brands implement SKAdNetwork attribution alongside probabilistic attribution methods.
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