More Data, Less Proof: Why Marketers Still Can't Show ROI
I love data but too much of it can be overwhelming, and that’s exactly what’s happening in marketing right now. I’ve read dozens of articles and sat through more webinars than I’d like to admit, so let me save you some time.
A thousand dashboards. A dozen attribution models. An identity graph that spans every device in the house. And yet, ask most marketers whether they actually trust their numbers, and watch them pause.
That pause tells you everything about marketing in 2026.
A new study from eMarketer and TransUnion found that more than half of marketers say their measurement confidence hasn’t improved year over year and 14% say it’s gotten worse. The tools have grown more sophisticated. So has the doubt.
The squeeze is coming from both sides.
Inside your company, finance is asking harder questions about ROI. Outside it, consumers are getting harder to track and harder to predict.
60%
of marketers say internal stakeholders have questioned their metrics
67%
report increased pressure to prove incremental ROI amid economic uncertainty
28%
of marketers have seen budgets reallocated or cut over measurement concerns
44%
of consumers have denied app tracking permissions entirely
Meanwhile, consumers are shifting their behavior faster than most models can catch up. Price pressure is real, and it’s changing how people shop.
38.5%
Are shopping for sales more frequently
35%
Are switching to store brands
29%
Are taking fewer shopping trips overall
28%
Are doing more comparative shopping online
64%
Actively object to advertisers accessing their personal data
Demand is splintering. Signals are disappearing. And the models trying to make sense of it all are working with less to go on.
More data doesn’t fix a trust problem.
“We are not short on data. We are short on alignment. When different systems tell different stories, it becomes difficult for leadership to know what to trust.”
— MATT SPIEGEL, EVP MARKETING SOLUTIONS, TRANSUNION
Identity resolution helps it connects signals across devices and reduces duplication. But it still can’t answer the most important question: Are your numbers reflecting real consumer demand, or just capturing demand that was already there?
AI makes this more complicated, not less. Nearly 30% of marketers are facing cuts to their analytics budgets while simultaneously being asked to automate more reporting with AI. The problem? AI finds patterns in whatever data it’s given. If your data has gaps, biases, or structural flaws — AI will scale those, not fix them.
So what actually works?
The marketers rebuilding trust aren’t doing it by adding another tool. They’re doing it by building structure: identity resolution for consistency, independent consumer research for external validation, and clearer governance around what metrics actually mean and how they’re reported.
The question isn’t whether you have enough dashboards. It’s whether those dashboards can hold up when your CFO asks hard questions — or when consumers stop being trackable altogether.
In a market saturated with data, credibility is the real competitive advantage.
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sources Brand Watch: Marketer of 2026 The Webinar https://www.brandwatch.com/blog/stream/marketing/
Forbes
m/sites/garydrenik/2026/03/19/marketers-want-better-roi-proof-but-lack-the-tools/
