Giving customers the best checkout experience is paramount. One effective way to achieve this is by implementing checkout extensions that offer personalized product suggestions. In this blog post, we will explore the process of creating a checkout extension using Shopify's UI Extensions framework. Specifically, we will focus on a feature that suggests a "surprise" or "mystery" product to customers during the checkout process, thereby increasing the likelihood of additional purchases. By leveraging the power of React and Shopify's APIs, we will guide you through the steps to build a seamless and engaging upsell experience.

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