Retail

Why ESLs Are Not Enough To Close The Margin Gap

Retailers lose billions due to pricing errors even with electronic shelf labels. Discover why execution gaps persist and how to ensure accurate, real-time pricing across every store.

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Authored By

Lukasz Piotrowski

CEO & Founder

A product on the shelf says $4.99. At checkout, it scans $5.99. The customer points it out, someone has to check, the line slows down. It’s a dollar, but it happens all day, across stores. At that scale, it became an invisible margin killer. And it’s not a label problem.

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The adoption of electronic shelf labels was supposed to close this gap for good. U.S. retailers lose $162.7 billion in margin every year to in-store execution failures. That's according to a 2025 report from Coresight Research and Simbe. Pricing errors are the top operational complaint for 37% of retailers. Promotional execution failures for 39%.

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These numbers come from this year well into the era of digital shelf technology.

We need to focus on how to optimise the process flow instead of relying entirely on the technology.

ESLs Sit at the End of a Much Longer Chain

Digital labels eliminate a specific class of errors: the ones caused by printing and placing paper tags by hand. But manual label handling was never the primary source of retail pricing errors. It was just the most visible one. 53% of shoppers notice a price gap between shelf and register. A separate study cited by Brain Corp found mismatches in over half of all stores inspected. For independent retailers, that number reaches 69%.

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A label only shows what is feeding it. That means a pricing engine, an ERP, a POS platform, and an ESL management system. Each connects at a different time. Few hold up against everything retail actually throws at them. ESLs do not sit at the centre of that chain, they sit at the very end of it. Install better labels on top of fragmented data, and the labels will be wrong faster. OmniShelf is built to solve exactly that upstream complexity.

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Indeed, we recently partnered with Solum to integrate their ESL technology into the product.

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The Part Most Retail Pricing Strategies Miss

A price change travels through a pricing engine, a product database, a POS layer, and an ESL platform. Each runs on its own schedule. Only then does it reach the shelf. On a normal day, for a single SKU, most of this works. A promotional event can affect thousands of SKUs across hundreds of stores. It often goes live at midnight before a peak weekend.

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Most retail pricing strategies focus on decisions. They define prices, timing for discounts, and responses to competitors. The execution side is often treated as an IT problem. It focuses on whether prices appear on the shelf accurately. That's the gap where margin disappears. Pricing errors often come from poor processes. Technical issues also play a role. Bad data, broken integrations, and missing checks are common causes. "Most retail pricing strategies focus on what price to set."

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Retail Pricing Errors That Survive Electronic Shelf Label Implementation

Three common issues still appear after ESL is in place. They happen when shelf labels and registers are out of sync.

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POS price mismatch: The POS updates at midnight; the ESL platform lags by hours. The store opens with the register charging today's prices while labels show yesterday's. A 2024 audit found a 3.86% error rate. This is close to the FTC benchmark: 1 in 30 items scan wrong at checkout. This number has not changed much in decades.

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Promotional timing gaps: A deal fires in the POS but labels take hours to catch up. The store gives away margin without the signage meant to drive the purchase. When a promotion ends, the POS updates first, while labels may lag behind. Customers then pay full price for what looks like a deal.

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Unreconciled manual overrides: A manager adjusts a price in the POS; the ESL keeps showing the old one. No alert fires. In Europe, the Omnibus Directive sets penalties of up to €900,000 or 4% of annual revenue. In China, a price mismatch is treated as fraud. Consumers can claim up to three times the item price, with a minimum payout of 500 RMB per case. In the Philippines, the lowest visible price always applies. There is no room for interpretation. Every silent override is a live compliance exposure.

What It's Actually Costing

At a 3.86% error rate across 30,000 SKUs, a single store carries roughly 1,150 mispriced items at any moment. A $0.40 average price gap and 10 daily units per SKU can cost a store about $1.7 million a year. Across 200 stores, that grows to nearly $340 million, before any promotion errors.

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As margin falls, trust also drops. NielsenIQ puts the customer defection rate after one bad pricing experience at 9%. Concerns about ESLs enabling surge pricing spread quickly. A 2025 Decodo/Reuters analysis found no evidence, yet major retailers still had to deny it.

How to Ensure Price Accuracy in Retail

Retailers that reach over 90% pricing accuracy follow the same approach. They use a single pricing record across all systems. They verify shelves continuously instead of relying on audits. They assign store-level accountability and ensure every manual override triggers a label update. The POS and the shelf don't drift apart in silence.

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OmniShelf solves this at the store floor level. Employees run scheduled shelf scans in real time. They check the price and the product. A misplaced item can be as costly as a pricing error and easy to miss without a clear process. The same scan also finds POSM gaps and on-shelf availability issues. It turns a routine price check into a full execution audit on the store floor.
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The label is the last thing a customer sees. Getting it right means fixing what happens before it.

Most pricing problems aren't visible until they're already costing you. If that's where you are, OmniShelf can help take a look to make sure the right product is on the right shelf, with the right price showing every time.

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SOURCES

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