Walmart admitted to overcharging customers at self-checkout kiosks due to a technical issue, impacting 1,600 stores. The malfunction was related to an 'internal system failure' causing a price data update halt.
Customers were overcharged an average of 1.88% due to the issue, with 80% reimbursed. Walmart reported a 6% revenue increase in Q1 2024 but faces challenges removing self-checkout lanes amid retail theft concerns.
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