Which company first introduced a loyalty program that used purchase data analytics to generate personalized coupons for customers at checkout, creating what retail analysts called the 'loyalty marketing revolution'?

Brand loyalty programs have evolved dramatically in the digital age, transforming from simple punch cards to sophisticated ecosystems of customer engagement. One particular innovation revolutionized how companies track and reward customer loyalty, creating billions in additional revenue while fundamentally changing consumer behavior. Test your knowledge of this pivotal moment in retail marketing history!

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Tesco with its Clubcard program
American Airlines with AAdvantage
Starbucks with Starbucks Rewards
Amazon with Prime