StackAdapt ties ads to $4tn in card spending
- Aug 5
- 2 min read
Updated: 5 days ago
TL;DR: StackAdapt has launched in-platform Economic Impact Measurement, connecting ad exposure to roughly $4 trillion in US consumer card-transaction data so marketers can tie campaigns to real purchases and adjust budgets mid-flight.
Ad-tech platform StackAdapt has launched a new capability, Economic Impact Measurement, that connects ad exposure to roughly $4 trillion in US consumer card-transaction data through a partnership with Affinity Solutions.
The self-serve tool lets marketers tie campaigns directly to real-world purchases and adjust budgets mid-flight, with an initial focus on travel and tourism brands. It is part of the industry's broader push to prove real-world ROI as cookie-based measurement erodes.
Why transaction data matters now
As third-party cookies and traditional signals degrade, connecting ads to actual spending is one of the most credible ways left to prove impact. Card-transaction data closes the loop between 'someone saw the ad' and 'someone bought' — the question every CFO actually asks.
Building this into the platform, in real time, is the key detail. Marketers can optimise toward proven purchases while a campaign is still live, rather than waiting weeks for a post-campaign study that arrives too late to act on.
Our read on the shift
This is where measurement is heading: outcome-based, purchase-linked and real-time. The advertisers who adopt it early gain a feedback loop competitors relying on clicks and impressions simply don't have.
The travel-first focus is smart — high-consideration, high-value purchases where linking exposure to booking is especially valuable. Expect the model to expand into retail and other verticals quickly.
What advertisers should do
Push your platforms and partners on outcome measurement. If you can connect campaigns to real purchase data — through tools like this or clean-room partnerships — you can optimise to sales rather than proxies.
The practical takeaway: proxies like clicks and impressions are increasingly not enough. In 2026, the advertisers winning are the ones optimising to money, in real time.
Quick FAQ
What is StackAdapt's Economic Impact Measurement?
An in-platform tool connecting ad exposure to roughly $4 trillion in US consumer card-transaction data via Affinity Solutions, letting marketers tie campaigns to real purchases.
Why is this significant?
As cookie-based measurement erodes, linking ads to actual spending is one of the most credible ways to prove ROI — and StackAdapt does it in real time, mid-campaign.
Which advertisers benefit first?
The tool launches with a focus on travel and tourism brands, where linking ad exposure to high-value bookings is especially valuable, before expanding to other verticals.
— Dimitro Cohen, Technology & Ad-Tech Correspondent at Marketing Minute
The takeaway: in a post-cookie world, the winners optimise to real purchases in real time — not to clicks and impressions.
Can you connect your campaigns to actual sales data yet — or are you still optimising to proxies?
If you would like to know more about this topic, please contact us on danieln@merxmarketing.co.uk
Sources: PPC Land, MarTech Cube.
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Written by Dimitro Cohen, Technology & Ad-Tech Correspondent at Marketing Minute
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