Walmart Just Made Your Agency Roster a First-Party Data Decision

Walmart Data Ventures introduced Scintilla Media Data Feed on April 28, an API that lets advertisers in Walmart Connect approve their agency and tech partners for direct access to roughly 500 of Walmart’s operational and retail data elements. Linda Lomelino, Walmart’s VP of product, data monetization and ads, described the elements as covering digital transactability, item attributes, and omni sales, with access governed by a pre-curated set advertisers approve themselves. The launch builds on Scintilla Insights Activation, which Walmart Data Ventures rolled out in October 2024 to connect Scintilla insights to Walmart Display campaigns.

The reporting on the launch has focused on the integration itself, the partner ecosystem, and a Walmart-supplied illustration of Scintilla data in action: a CPG brand that identified ZIP-code-level share loss to a competitor and ran a geo-targeted offsite campaign through a Walmart DSP. That illustration is useful, but it describes what Scintilla data can do, not what the feed itself changes.

What changes is who decides which partners see which Walmart data, and on what schedule.

The Bottleneck Moves From Access to Approval

Until now, when a brand’s agency wanted Walmart sales data to inform a Connect campaign, the workflow was familiar: someone on the supplier side pulled a Scintilla report, exported it, sanitized it, and sent it over. Repeat per campaign cycle, per partner, per data refresh. Lomelino’s blog post describes the prior state plainly, calling it a manual, fragmented process built on one-off exports and custom workflows.

Scintilla Media Data Feed collapses that workflow into a permission. The supplier approves a partner once, scopes which of the roughly 500 elements that partner can pull, and the data flows directly into the partner’s planning, optimization, and measurement tools. Walmart’s announcement describes the elements as covering digital transactability, item attributes, and omni sales. In a partner quote in the same announcement, Pacvue’s Geoffrey Beliard listed sales velocity, inventory levels, and nil pick rate as examples of the retail signals advertisers can connect to media activation strategies through the API.

The interesting consequence is not speed. It is that the gating question shifts from “can we get this data to our agency in time” to “should this partner have ongoing programmatic access to our Walmart sales velocity and nil pick rate.” That second question is qualitatively different. It is a governance decision, made once, with consequences that compound over the life of the partnership.

The Partner Network Is Already Tiered, and That Tiering Is About to Matter More

The Walmart Connect Partner Network operates a three-tier structure: Partner, Premium Partner, and Premium+ Partner. Status is determined by annual Walmart Connect spend, product adoption, and compliance with Walmart Connect guidelines. According to Walmart Connect, Premium+ partners are recognized for data-driven expertise and are more likely than other partners to engage in strategic initiatives and test new features.

The implication for Scintilla Media Data Feed is one suppliers should draw for themselves. The partners most likely to seek and qualify for feed access are concentrated at the top of the tier ladder. Those are also the partners with the deepest book of competing brands in any given category. A Premium+ partner serving five brands in a single CPG category will, if approved by all five, have an ongoing programmatic view of each of them.

This is not a hypothetical concern about agency conflicts. It is a structural feature of how the top of the partner network is built. Suppliers who approve broadly without thinking through which elements a category-shared partner actually needs are giving away leverage. Suppliers who build a tiered approval framework, with narrower scopes for category-shared partners and broader scopes for exclusive ones, preserve it.

What This Looks Like Across 1P and 3P

For 1P suppliers, the implications are most direct. These are the brands with the deepest Walmart Connect spend, the most complex agency rosters, and the most operational data exposed through the feed. Element categories like nil pick rate and inventory levels deserve particular scrutiny because they reveal replenishment performance, and suppliers should consider how a category-shared partner might read those signals against OTIF compliance and line review preparation.

For 3P Marketplace sellers, the feed’s relevance depends on Connect spend. Sellers running meaningful Sponsored Products and Sponsored Brands budgets through agencies will see the same governance question, scaled to their partner mix. Sellers managing Connect in-house have less exposure but should still understand the feed because their tech vendors, including bid management platforms and analytics tools, will increasingly request access. The question for in-house 3P teams is which vendor relationships are worth upgrading to feed-level access and which should remain at the report-export tier.

The split that matters across both segments is between brands with formal data governance functions and those without. The former will treat Scintilla Media Data Feed as a manageable extension of existing controls. The latter will need to build a control framework on the fly, and the partner pressure to approve broadly will be substantial.

Why Walmart Is Building This Now

Walmart’s advertising business generated $4.4 billion in fiscal 2025, with Walmart Connect specifically growing 31% in the first quarter of fiscal 2026 and global advertising revenue up 50% year over year in that quarter, according to Marketplace Pulse and eMarketer. The implication for suppliers is that the marginal Connect dollar increasingly comes from advertisers who expect retail media to integrate with the rest of their stack, and that integration requires programmatic data access rather than exported reports.

Scintilla Media Data Feed is the infrastructure that supports those advertisers. The supplier’s job in that infrastructure is to manage a permission system whose consequences compound quietly over the life of every partner relationship on the approved list.

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