The deal puts permissioned transaction data at the heart of ad activation — and an early retail campaign claims $3.1 million in attributable sales as proof of concept.
WunderKind Ads and Attain have announced a strategic partnership aimed at closing the gap between digital advertising and real-world sales outcomes, giving brands access to live, permissioned consumer purchase data to inform targeting, optimization, and measurement.
The integration connects Attain’s Commerce Audiences — built from transaction data collected directly from more than 13 million consumers — with WunderKind Ads’ ad inventory. The result, the companies say, is a system that allows advertisers to move beyond demographic targeting and build audience segments based on actual purchase behavior, including signals such as shifts in spending patterns or emerging life-stage changes.
Campaigns can be segmented using criteria including purchase propensity, recency, frequency, and customer lifetime value, with data that is continuously refreshed. Advertisers also gain the ability to adjust campaigns mid-flight based on real-time purchase signals, rather than waiting until a campaign concludes to assess performance.
The companies say a major national retailer tested the joint solution during an annual sale, integrating Attain’s transaction data with WunderKind Ads’ inventory to measure the direct sales impact of media exposure in near real time. The campaign generated more than $3.1 million in attributable sales, with a return on ad spend exceeding $105 — a 63% increase against the retailer’s existing ROAS benchmark.
“This is what the next generation of retail media looks like: verified purchase data informing every ad decision, refreshed in real time,” said Adam Gendelman, VP and Head of Sales, Supply and Operations at WunderKind Ads.
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On the measurement side, the partnership offers verified sales lift reporting, covering attribution metrics such as ROAS and sales-driven, net new buyer lift, and incrementality — giving advertisers a fuller picture of how media spend translates to revenue.
“This partnership is about accountability,” said Brian Mandelbaum, CEO of Attain. “Together with WunderKind Ads, we’re helping brands activate premium audiences and clearly measure incremental sales impact.”