Which retail innovation holds the Guinness World Record for 'Fastest Billion-Dollar Revenue Achievement from a Single Retail Platform'?

The retail world is filled with impressive innovations and record-breaking achievements. From the fastest-growing loyalty programs to the most extensive retail logistics networks, companies continuously push boundaries to stand out. This trivia tests your knowledge about a significant world record in retail innovation that revolutionized consumer behavior and set new standards in the industry. Can you identify which retail innovation holds this impressive world record?

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Amazon Prime Day (reached $1 billion in sales in 16 hours during its first event in 2015)
Alibaba's Singles Day (reached $1 billion in sales in just 68 seconds in 2018)
Walmart's Black Friday Mobile App (reached $1 billion in sales in the first 4 hours of launch in 2017)
Target's Circle Loyalty Program (generated $1 billion in incremental sales within first 30 days of national rollout)