Case File: Pet Economy

The Customer You're Losing Without Knowing It

A loyal dog food subscriber was secretly buying cat products elsewhere. Ario uncovered the hidden spend.

About The Company

Chewy is a leading U.S. pet retailer serving millions of dog and cat owners, relying on subscriptions and personalized recommendations to drive engagement and loyalty.

Chewy processes over $11 billion in annual revenue and has built its brand on anticipating pet owners' needs — handwritten holiday cards, proactive subscription management, and a customer service team that sends flowers when a pet passes away. But like most retailers, Chewy's understanding of each customer ends at its own checkout.

The Challenge

Lexi had been a loyal Chewy customer for years, faithfully ordering dog food on a regular subscription schedule. On the surface, she seemed fully engaged and satisfied.

What Chewy didn't know: Lexi had recently adopted a cat, and her growing cat-related purchases—food, toys, and scratching posts—were happening entirely on Amazon.

This blind spot meant Chewy was losing share of her overall pet spend without realizing it, risking revenue and missing the opportunity to engage her as a full pet owner.

Lexi bought Leo's dog food like clockwork — one bag every four weeks. Her surveys said she was satisfied. Her dashboards said she was retained. Every signal pointed to a loyal, low-risk customer.

But Chewy's models had stopped reflecting her reality. The spending shift was invisible because it happened outside their data. And Lexi isn't an outlier — in multi-pet households, 62% of secondary pet spend happens on a different retailer than the primary pet's retailer. The customer looks stable in your system while their wallet quietly migrates elsewhere.

The Ario Insight

With Ario's customer-consented purchase data, Chewy was able to see what had been invisible: Lexi was spending heavily on cat food, toys, and scratching posts — all on Amazon.

The data painted a clear picture. Her pet spend was quietly shifting away from Chewy, even as her dog food subscription continued without interruption. Without Ario, Chewy would have seen a loyal customer. With Ario, they saw an at-risk one.

The data went deeper than just knowing Lexi had a cat. Ario's SKU-level transaction history showed exactly what she was buying: premium grain-free cat food ($47/bag, monthly), an automated litter box ($189), and a recurring cat toy subscription ($24/month). Her total cat spend over 12 months exceeded $1,440 — more than her annual dog food spend with Chewy.

This wasn't a customer drifting away gradually. It was a customer whose needs had expanded overnight, and every dollar of that expansion was going to a competitor.

The Opportunity

Armed with this insight, Chewy could act — not with generic promotions, but with personalized campaigns that spoke directly to Lexi's new life as a cat owner. Targeted recommendations for cat food, bundled dog-and-cat subscription offers, and timely nudges based on her actual purchase cadence.

Beyond Lexi, this kind of visibility opens up a broader strategic advantage. By monitoring wallet shifts in real time across their entire customer base, Chewy can detect early signs of churn before they ever show up in their own transaction data — and intervene while there's still time to win that spend back.

The strategic playbook extends across three areas:

  • Subscription bundling: Offer Lexi a combined dog-and-cat Autoship with a discount incentive, triggered by the insight that she's already buying cat products at a regular cadence elsewhere.
  • Category expansion signals: Use off-platform purchase data to identify the moment a customer enters a new pet category — before they've built loyalty with another retailer.
  • Churn scoring with external signals: Traditional churn models rely on declining purchase frequency within your own data. By the time a customer stops buying from you, it's often too late. Cross-retailer data lets you detect wallet migration while the customer is still active — while there's still time to intervene.

Across Chewy's customer base, Ario's data suggests the invisible pet spend opportunity — purchases happening at competitors that Chewy could capture — represents a significant incremental revenue opportunity per customer, per year.

Customer Summary

Chewy gained full visibility into Lexi's pet spending — not just what she bought from them, but the purchases happening elsewhere that told the real story. What looked like a stable, loyal customer was actually a growing retention risk.

With Ario, Chewy uncovered hidden revenue opportunities and identified a clear path to recapture lost share of wallet — turning a blind spot into a competitive advantage.

Want insights like these?

See what your customers spend at every competitor

The data in this story came from real Ario connections. Schedule a walkthrough to see what your brand is missing.

Schedule a Demo