One-Click Checkout is an e-commerce feature that allows registered customers to make purchases with a single click or tap, without the need to repeatedly enter shipping, billing, and payment information. It simplifies and expedites the checkout process by storing customer data securely and automating the transaction, resulting in a frictionless shopping experience.

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Explanation: One-Click Checkout is designed to enhance convenience and reduce cart abandonment rates in e-commerce. When a customer opts to use this feature, their previously entered information, such as shipping address and payment details, is securely stored in their account. As a result, they can complete a purchase with just one click, eliminating the need to manually enter data for each transaction. This streamlined checkout process is particularly valuable for mobile shoppers, where convenience and speed are of paramount importance.

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E-commerce businesses offering One-Click Checkout must prioritize customer data security and compliance with data protection regulations. Measures such as encryption and authentication are used to safeguard customer information. While One-Click Checkout can significantly improve the customer experience, it's important for businesses to provide options for customers to review and edit their stored information and to offer a secure and transparent opt-out process for those who prefer not to use the feature. Overall, One-Click Checkout exemplifies the ongoing evolution of e-commerce technologies to meet the demand for a fast and user-friendly shopping experience.