Which retail analytics achievement holds the Guinness World Record for 'Largest Simultaneous Customer Behavior Analysis' conducted in 2022?

The retail industry has seen some remarkable achievements worthy of Guinness World Records. From the largest department stores to the most innovative uses of technology, retailers around the world have pushed boundaries to create memorable shopping experiences. Test your knowledge about the intersection of retail and world records with this challenging question about retail analytics and consumer behavior tracking.

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Amazon's real-time analysis of 18.3 million concurrent online shoppers during Prime Day
Walmart's in-store tracking of 4.7 million customers across 8 countries on Black Friday
Alibaba's processing of 9.2 million shopping patterns during Singles' Day
IKEA's heat-mapping analysis of 2.8 million store visitors in a 24-hour global event