Observed Signal · Apr 28, 2026 · Product Launch · Source: Digiday · Impact: 4/5 · Sentiment: Positive
Walmart’s Scintilla API Moves Toward Self‑Serve
Walmart Data Ventures is rolling out the Scintilla Media Data Feed — a new API that gives agencies, tech partners and advertisers more direct, scalable access to Walmart first‑party commerce and operational data. Scintilla (available since 2021 as a broader offering) is expanding to include roughly 500 retail metrics and near‑real‑time signals such as inventory, store‑level trends and regional performance. The launch aims to reduce manual data handoffs by letting suppliers permission partners to stream non‑media omnichannel signals for planning, optimization and measurement. Omnicom (via its Flywheel commerce arm) has had early access; Walmart executives say the product is not fully self‑serve yet but is moving closer to that model. Walmart published client results in a blog post citing sales lifts and audience reach metrics tied to the expanded feed.
A major retailer (Walmart) is expanding API access to rich first‑party commerce and in‑store data (~500 metrics). This affects measurement, retail media activation and agency workflows and could materially shift how advertisers plan, optimize and attribute retail-driven sales.
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Key Takeaways & Evidence Grounding
- Walmart Data Ventures is launching the Scintilla Media Data Feed API to provide scalable API access to Walmart first‑party commerce and operational data.
- Scintilla as a broader data offering has existed since 2021; the expanded commerce-side data is being made more directly accessible to agencies and tech partners effective the week of publication (April 28, 2026).
- The API exposes what Walmart calls 'non-media, omnichannel signals' including near real‑time inventory and availability, store‑level trends, and regional performance.
- Walmart says the expanded feed includes almost 500 retail metrics and insights beyond traditional media measurement.
- Omnicom (Flywheel) had initial access through existing partnerships; Walmart published a blog post reporting a client case with 2.97% sales lift, 2.1 million households reached, 18.62x higher impression delivery in targeted markets, 72% win‑back rate, and 31% new buyer acquisition.
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Walmart's Scintilla In-Store: Real-Time Insights for Suppliers
Walmart has launched Scintilla In-Store, a new layer of its Scintilla data ecosystem that surfaces store-level signals—such as shelf inventory and execution tasks—to suppliers. The platform provides a single interface for suppliers to monitor store performance, assign corrective tasks, and respond to stock or display issues that can affect campaign conversion. Walmart says Scintilla In-Store enables faster identification of stock gaps so brands can adjust marketing spend, timing, or geographic focus before sales performance declines. The product is positioned within a broader industry shift toward retailer-owned first-party data systems that combine transaction, behavioural and in-store signals. Future updates are expected to include AI-driven prioritisation to help suppliers decide which locations or items need attention first.
Walmart Upgrades Scintilla Platform with Marketplace Data and AI
Walmart's first-party data platform for merchants and suppliers, Scintilla, is set for a major upgrade next year. Announced at the Walmart Data Ventures Inspire conference, new features will include access to marketplace data, customizable dashboards, custom alerts, an enhanced Marty AI assistant, and tighter integration with Scintilla In-Store and replenishment systems. First-party suppliers selling on Walmart Marketplace will gain visibility into their marketplace performance, while AI will shift from summarizing to making recommendations. These upgrades aim to provide a unified view of sales, customer behavior, and supply chain. Scintilla remains unavailable to marketplace-only sellers, but Walmart plans to expand access to Sam's Club suppliers next year. CFO John David Rainey noted that Walmart Data Ventures 'continues to drive meaningful growth.'
Walmart Brings Scintilla Data Platform to Sam’s Club
Walmart will expand its first-party customer data and analytics platform, Scintilla, to Sam’s Club in the U.S. next year, aiming to give Sam’s Club merchants and suppliers access to sales, inventory, shopping-pattern and customer-survey data to improve assortment, availability and member experience. The platform sits under Walmart Data Ventures and has previously expanded to Mexico and Canada; Walmart has also rolled out API access to allow advertisers and agencies to securely share Walmart first-party operational and retail data with partners.
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