InMarket announced a strategic partnership with Yahoo DSP that brings a visit‑based optimization solution to programmatic buyers across the United States and Canada. The integration lets advertisers fuse InMarket’s in‑store visit data with Yahoo’s omnichannel DSP, enabling automated campaign tweaks that directly tie digital spend to foot‑traffic outcomes.
What the partnership delivers
The joint offering combines a daily stream of anonymized, observed store visits from InMarket with Yahoo’s “In‑Flight Outcomes” API. As a campaign runs, the system matches ad impressions to physical visits, feeding the data back into Yahoo Blueprint for instant bid and budget adjustments. In practice, a retailer can see, within minutes, whether a display ad is driving shoppers to a brick‑and‑mortar location and reallocate spend toward the creative or audience segment that yields the strongest lift.
InMarket also makes its Campaign Incrementality platform available alongside the DSP integration. While the real‑time feed focuses on visit attribution, the incrementality tool quantifies the lift in sales and return on ad spend (ROAS) that can be directly credited to the digital effort, providing a complete measurement stack from impression to purchase.
Why the announcement matters
Foot‑traffic measurement has long been a blind spot for programmatic marketers. A 2023 Gartner survey found that 68 % of enterprise marketers struggle to connect online media spend with offline sales, often relying on lagging, survey‑based estimates. By delivering near‑real‑time, store‑visit data, InMarket and Yahoo DSP address that gap, giving brands a data‑driven way to justify media budgets in retail, quick‑service restaurant (QSR), and automotive verticals.
The partnership also aligns with tightening privacy regulations. Because InMarket’s visit data is aggregated and de‑identified, it sidesteps the need for third‑party cookies while still offering actionable signals—a sweet spot for marketers navigating the post‑cookie landscape.
Industry impact and competitive context
Real‑time offline attribution is emerging as a differentiator among DSPs. The Trade Desk recently launched “Offline Conversions” for retail partners, and Amazon Advertising offers “Store Visits” metrics within its Sponsored Ads suite. However, InMarket’s solution stands out for its daily, high‑frequency data refresh and its seamless integration with Yahoo’s existing “In‑Flight Outcomes” framework, which already supports multi‑device attribution and cross‑channel pacing.
For enterprise marketers, the combined stack reduces reliance on third‑party measurement vendors and consolidates reporting into a single UI. This simplification can shorten the attribution learning curve, lower operational overhead, and accelerate optimization cycles—critical advantages in a market where IDC predicts programmatic spend will exceed $150 billion by 2027.
How marketers can put the technology to work
- Define visit‑centric KPIs – Instead of generic click‑through rates, teams should set foot‑traffic lift and store conversion as primary goals.
- Leverage automated pacing – Yahoo Blueprint can automatically shift budget toward ad sets that demonstrate the strongest visit correlation, freeing media planners from manual bid adjustments.
- Layer incrementality analysis – Post‑flight, the Campaign Incrementality model quantifies the incremental sales attributed to the digital effort, enabling true ROI calculations.
By embedding these steps into existing media workflows, brands can transform raw visit data into a strategic lever for omnichannel growth.
Technical considerations
- The integration relies on a secure API endpoint that pushes anonymized visit hashes to Yahoo’s platform every 24 hours.
- Because the data is aggregated at the market level, there is no personally identifiable information (PII) exchange, keeping the solution compliant with GDPR, CCPA, and emerging privacy frameworks.
- Advertisers must map InMarket’s location IDs to Yahoo’s inventory targeting taxonomy—a one‑time configuration that the two companies’ support teams handle.
Market Landscape
The push toward offline attribution reflects a broader shift in adtech toward closed‑loop measurement. Forrester predicts that by 2025, 55 % of B2B marketers will prioritize solutions that combine online engagement with offline conversion signals. In this context, InMarket’s partnership with Yahoo DSP accelerates the convergence of programmatic buying and physical‑world outcomes.
Competing approaches—such as Amazon’s “Store Visits” and The Trade Desk’s “Offline Conversions”—typically rely on proprietary data silos and require separate reporting dashboards. Yahoo’s existing client base, combined with InMarket’s extensive retail partner network, offers a more unified experience that can be scaled across multiple brands and geographies.
The collaboration also dovetails with the rise of “hybrid media planning,” where brands allocate budgets across CTV, digital display, and traditional out‑of‑home while demanding a single measurement framework. Real‑time visit data can serve as a common denominator, enabling cross‑channel budget optimization that was previously impossible.
Top Insights
- Real‑time foot‑traffic data closes the offline attribution gap: Daily visit streams let marketers adjust spend while campaigns are still running, improving ROAS by up to 20 % in pilot studies.
- Privacy‑first design meets regulatory pressure: Aggregated, de‑identified visit signals avoid third‑party cookie dependence, aligning with GDPR and CCPA requirements.
- Unified measurement stack reduces complexity: Combining InMarket’s incrementality platform with Yahoo DSP’s native reporting eliminates the need for separate analytics vendors.
- Competitive edge for retail and QSR verticals: The solution’s focus on store visits gives brands in high‑foot‑traffic sectors a decisive advantage over generic programmatic tools.
- Scalable across geographies: Available in the U.S. and Canada now, with plans to expand to Europe and APAC as data partnerships mature.
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