Walmart Connect Is No Longer Optional: How Retail Media Became a Line Item in Every Vendor P&L

Walmart Connect — Walmart's retail media and advertising platform — has evolved from an experimental offering to a core revenue stream generating an estimated $3.4 billion in 2024, with growth rates of 20-30% annually. The platform offers vendors sponsored search placement on Walmart.com and the Walmart app, display advertising across Walmart's digital properties, in-store advertising through TV walls, self-checkout screens, and radio, and off-platform advertising using Walmart's first-party shopper data to target consumers across the open web.

For vendors, the transition from "recommended" to "mandatory" has been gradual but unmistakable. Products without funded Walmart Connect campaigns receive lower organic placement in search results on Walmart.com. Category reviews increasingly include Walmart Connect performance as a metric alongside sales velocity, margin, and OTIF compliance. Vendor scorecards now include retail media investment as a factor in overall account health. The system does not technically require media spending — but the outcomes for vendors who do not spend are measurably worse than for those who do.

• • •

The Budget Source Problem

The strategic question for every CPG vendor is: where does the Walmart Connect budget come from? The budget must flow from one of three sources: incremental marketing investment (increasing total marketing spend), reallocation from traditional advertising (shifting dollars from TV, digital, and print), or reallocation from trade spend (moving funds from promotions and slotting into media). Each source has different organizational and P&L implications.

In practice, most vendors are funding Walmart Connect through a combination of trade spend reallocation and incremental investment. The trade spend reallocation is contentious: trade dollars historically funded promotions that generated measurable volume lifts, and the ROI comparison between a promotional discount and a sponsored search placement is not straightforward. The vendor sales team may prefer trade promotions (which drive volume they are compensated on) while the marketing team prefers retail media (which drives awareness and consideration metrics they are measured on). The internal misalignment creates organizational friction that slows optimization.

• • •

ROAS and the Measurement Challenge

Walmart Connect reports return on ad spend (ROAS) to vendors — typically showing $3-$7 of attributed sales per dollar of media spend. These numbers are attractive on the surface but require careful interpretation. Attribution models in retail media tend to be generous: they credit the ad with sales that might have occurred organically. A consumer who searched for "Tide pods" on Walmart.com and clicked on a sponsored Tide result was likely going to buy Tide regardless — the ad may have accelerated the purchase but did not create it.

The more meaningful metric for vendors is incrementality — the sales that would not have occurred without the media spend. True incrementality testing (holdout groups, market-level experiments) typically shows that 30-50% of retail media attributed sales are truly incremental, with the remainder representing sales that would have happened organically. This means the effective ROAS is closer to $1-$3.50 per dollar spent — still positive but meaningfully different from the headline numbers.