Which company pioneered the first interactive QR code advertising campaign that allowed customers to make instant purchases by scanning codes on billboards?

The world of advertising has seen many revolutionary campaigns that transformed how brands connect with consumers. Some campaigns have become so influential they've changed the entire landscape of marketing and created new paradigms for customer engagement. This question explores a groundbreaking advertising innovation that altered the course of retail history and how products are marketed worldwide.

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Tesco in South Korea (2011)
Amazon in Japan (2009)
Walmart in the United States (2013)
Alibaba in China (2010)