Which behind-the-scenes e-commerce innovation, introduced around 2007-2009, is credited with reducing cart abandonment rates by up to 35% and is now standard across most major online retailers?

In the rapidly evolving landscape of online retail, certain innovations have fundamentally changed how businesses connect with consumers. While many focus on visible front-end features, some of the most transformative developments have happened behind the scenes. This trivia question explores a critical e-commerce innovation that revolutionized online shopping by addressing one of the biggest barriers to conversion.

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One-click purchasing patents
Guest checkout options
Product recommendation algorithms
Dynamic pricing systems