Shopping cart abandonment occurs when customers add products to their cart but don't complete the purchase. Common reasons include unexpected costs (like shipping fees), complex checkout processes, security concerns, and comparison shopping. To reduce cart abandonment: Transparent Pricing: Clearly display all costs upfront, including shipping fees and taxes. Streamlined Checkout: Simplify the checkout process with as few steps as possible. Trust Signals: Display trust badges, secure payment options, and privacy assurances. Cart Recovery Emails: Send reminders to users who abandon their carts, offering incentives or discounts to complete the purchase. Mobile Optimization: Ensure a seamless mobile checkout experience, as many users shop on smartphones.