What is on-shelf availability (OSA)?

OSA is the measure of whether a product is actually present, visible, and purchasable on the shelf at the moment a shopper looks for it — distinct from inventory records, which can be wrong.

What causes phantom inventory?

Phantom inventory happens when a store's ERP or POS system shows units in stock that don't physically exist on the shelf — because they're lost in the backroom, damaged, miscounted, or misplaced. EPOS-based OOS models can't detect this because they rely on system records, not physical shelf checks.

Why can't EPOS sales data alone measure true OSA?

EPOS modeling infers stockouts from a drop in sales velocity, which is reactive and blind to phantom inventory — a product can show as "in stock" in the system while the shelf is physically empty.

How much revenue do CPG brands lose to out-of-stocks?

With average OOS rates around 8% and roughly 30% of shoppers buying a competitor's product and 20% leaving the store when they hit a stockout, unaddressed OOS translates directly into lost sales and, over repeated instances, permanent brand switching.

How does AI image recognition measure OSA at scale?

Field reps or crowdsourced shoppers photograph the shelf; computer vision identifies every SKU and facing in the image, cross-references it against the authorized product list and planogram, and reports true on-shelf availability instantly — across as many stores as photos are captured in.

How to Perform On-Shelf Availability (OSA) Measurement at Scale: The Ultimate CPG Guide

More Knowledge Shelf

SKU-Level Insights from Smartphone Photos: The Ultimate Retail Execution Reference Guide

Planogram Compliance Without Manual Audits: A Playbook

Trust & Performance: The Real Numbers Behind Snap2Insight's Shelf AI

How AI makes the Perfect Shelf possible at Retail

AI-Powered Shelf Visibility: How Snap2Insight Is Transforming Retail Execution

AI Image Recognition for Retail Execution: Frequently Asked Questions

Checklist: Is Your Brand Ready for AI-Powered Retail Merchandising?

How AI Transforms CPG Revenue Growth Management: Smarter Insights for Optimized Retail Execution

Ready to Scale Your OSA Measurement?

Talk to our team at Snap2Insight to see how AI image recognition can eliminate phantom inventory across your store network.