Walmart Connect Comes to Google Display & Video 360 — What Retail Advertisers Need to Know

The short version

Walmart Connect, Walmart’s retail media network, is integrating with Google Display & Video 360 (DV360), Google’s programmatic demand-side platform, as announced on Google’s official blog in June 2026. The partnership lets advertisers buy Walmart’s first-party purchase-data-powered audience segments programmatically through Google’s DSP. Progressive Grocer called it a retail media milestone, and ADWEEK framed it as Walmart challenging Amazon’s ad dominance directly.

Key facts

• Walmart Connect audience segments now available in Google DV360
• First-party Walmart purchase data powers audience targeting
• Closed-loop measurement: track ad exposure → in-store purchase
• YouTube ad insights enhanced with Walmart purchase data
• Positions Walmart as Amazon’s primary retail media competitor

What happened

In June 2026, Google announced that “we’re bringing Walmart Connect to Display & Video 360,” confirming one of the most significant retail media partnerships of the year. The integration allows advertisers using Google’s programmatic buying platform to access Walmart’s audience segments built from purchase data across 4,700+ US stores and Walmart.com.

Progressive Grocer analyzed the deal as Walmart’s retail media division “teaming up” with Google’s programmatic infrastructure. Marketing Dive noted that the partnership specifically enhances YouTube ad insights — brands can now see how YouTube ad exposure correlates with Walmart purchases, closing the loop between upper-funnel video and lower-funnel retail conversions.

The competitive context is critical: Amazon’s advertising business generates over $50 billion annually, largely because advertisers can target Amazon shoppers using Amazon purchase data and measure the result through Amazon sales. Walmart has the purchase data (more physical retail transactions than Amazon) but lacked the ad inventory. Google DV360 provides that inventory at scale.

How it works

The integration operates at three levels:

Audience targeting Advertisers can select Walmart Connect audience segments directly within the DV360 interface. Segments include:

• Category buyers (e.g., “purchased diapers in last 90 days”)
• Brand switchers (e.g., “bought competitor brand in last 60 days”)
• Lapsed buyers (e.g., “hasn’t purchased in category in 6+ months”)
• In-store vs. online shoppers

Inventory access Walmart Connect audiences can be targeted across:

• Google Display Network and Demand Gen
• YouTube (with enhanced purchase-data insights)
• Programmatic display and video across DV360’s open exchange inventory

Closed-loop measurement The defining feature of retail media: advertisers can see whether someone who saw their ad later purchased the product at Walmart (in-store or online). This closes the attribution loop that traditional programmatic advertising lacks — you know whether the ad worked, not just whether it was clicked.

Why Walmart’s purchase data is uniquely valuable

Walmart’s data advantage over other retail media networks is in physical retail. With 4,700+ US stores serving 230 million customers weekly, Walmart has purchase data on a scale that pure ecommerce players can’t match — especially in categories where in-store buying dominates: groceries, household essentials, baby products, and OTC pharmacy.

For CPG brands, this is transformative. A diaper brand can target Walmart shoppers who bought a competitor’s diapers in-store last month, serve them a YouTube ad, and measure whether they switched brands on their next Walmart trip. The precision of this targeting — verified purchase behavior, not inferred interest — makes retail media the fastest-growing segment of digital advertising.

Google’s official blog post emphasized that this partnership is part of a broader strategy to help brands “turn data into decisions,” connecting Google’s AI-powered ad delivery with Walmart’s purchase-verified audience data.

What this means (our take)

The Walmart-DV360 deal confirms that retail media is no longer a walled-garden experiment — it’s the future of performance advertising. Amazon built the template: use purchase data for targeting, sell that targeting at a premium, and measure closed-loop. Walmart is now executing the same playbook with an important difference: Google’s open-web reach.

For brands already selling on Walmart, this is a no-brainer. The ability to target Walmart shoppers off-platform and measure the results back to Walmart purchases closes a gap that previously required separate programmatic and retail media budgets with no unified attribution.

For Google, the partnership addresses a structural weakness: Google knows what people search for, but Amazon and Walmart know what people actually buy. By integrating Walmart’s purchase data into DV360, Google makes its ad platform more competitive against Amazon Ads for CPG and retail brands.

What to do now

1. Set up Walmart Connect if you sell on Walmart — you need an active Walmart Connect account and approved products before you can access the DV360 integration.

2. Prepare your product-level sales data — the most valuable use case is targeting based on specific product purchase history, not just category-level segments. Work with your Walmart buyer rep to verify your product data is structured for audience creation.

3. Plan YouTube + Walmart attribution testing — the Marketing Dive report highlighted YouTube insights as a key feature. Set up a YouTube campaign targeting Walmart category buyers and measure in-store purchase lift.

4. Compare against Amazon DSP — if you’re already running Amazon DSP campaigns, run a parallel Walmart/DV360 test. Compare CPAs, audience overlap, and incremental sales to allocate budget between the two retail media giants.

FAQ

Q: Do I need to be a Walmart supplier to use Walmart Connect on DV360? Yes. Walmart Connect audience segments are built from Walmart’s first-party purchase data, which is only available to brands whose products are sold at Walmart (in-store or on Walmart.com). If you don’t sell on Walmart, you cannot access these audiences.

Q: How much does Walmart Connect via DV360 cost compared to standard Google Ads? Retail media audiences typically carry a premium CPM over standard demographic or interest-based targeting. Expect to pay 20-50% more per impression, with the premium justified by higher conversion rates from purchase-verified targeting and closed-loop attribution.

Q: Is this available globally or US-only? The initial rollout is US-only, reflecting Walmart’s primary market. International expansion to markets where Walmart operates (Mexico, Canada, India via Flipkart) has not been announced but is likely to follow.

Sources

• blog.google — We’re bringing Walmart Connect to Display & Video 360 (June 2026)
• Progressive Grocer — Walmart’s Retail Media Division Teams Up With Google Display & Video 360 (June 2026)
• Marketing Dive — Sociable: Google enlists Walmart Connect to enhance YouTube ad insights (June 2026)
• ADWEEK — Walmart Challenges Amazon With New Google Deal (June 2026)
• Small Business Trends — YouTube Teams Up with Walmart to Enhance Ad Targeting for Brands (June 2026)

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