How Ehrenkind turned S2S tracking into a profit engine.

iOS 14 broke the data ecosystem.

Ehrenkind, like most DTC advertisers, lost visibility into user behavior once iOS 14's privacy changes took effect, and ad performance declined as a result.

Acquisition costs rose and ROAS fell substantially, with no reliable way to know which campaigns were actually still working.

A direct server-to-server connection to Meta.

Admetrics implemented a server-to-server integration with Meta, bypassing the data-sharing restrictions iOS 14 imposed and feeding Meta a more robust, direct data set.

An A/B test measured the S2S approach directly against standard data sharing, isolating exactly how much more accurate targeting and budget allocation became.

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60.3% higher ROAS, measured head-to-head.

In a direct A/B test, CPC fell 13.5%, CPO fell 25.2%, order value rose 19.8%, and ROAS climbed 60.3%, a clear, measured lift from S2S tracking with Meta. The test isolated tracking method as the only variable, so the gains came from better signal quality alone, not a change in creative or targeting strategy.