Which retailer set a Guinness World Record in 2018 for the 'Longest Marathon Shopping by an Individual' as part of an experiential marketing campaign?

The retail industry is full of fascinating world records - from the largest malls to the most expensive products ever sold. But when it comes to customer engagement and experiential retail, some brands have gone to extraordinary lengths to set world records that showcase their innovative approach to shopping experiences. Test your knowledge about this remarkable retail world record that transformed shopping into an endurance event!

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Alibaba, with a customer shopping continuously for 46 hours during Singles' Day
Amazon, with a Prime member browsing and purchasing for 50 hours straight during Prime Day
Macy's, with a shopper participating in their 'Shop 'Til You Drop' challenge for 41 hours
Walmart, with a Black Friday shopper lasting 38 hours across multiple store locations