Checkout is the final stage of the purchase process in retail, where customers complete their transaction by paying for the selected products or services. It involves various steps, including reviewing and confirming the items in the shopping cart, providing shipping and billing information, and selecting a payment method. In traditional brick-and-mortar stores, the checkout process often occurs at a physical counter, while in e-commerce, it takes place on a website's checkout page. An efficient and user-friendly checkout experience is crucial for customer satisfaction and can impact conversion rates, influencing whether customers complete their purchase or abandon their shopping cart.