Function Lab is a versatile app designed to simplify the process of replacing scripts with functions, allowing users to effortlessly create their own functions without the hassle of deployment. With its intuitive JSON editor, users can easily generate functions tailored to their specific needs. Currently, the app offers the ability to create Automatic Discounts, and soon plans to introduce features like Delivery Customizations, Payment Customizations, and Discount Codes. Function Lab provides a do-it-yourself function editor, giving you full control over your functions. For added convenience, you can copy and paste common functions from the app's extensive sample library. Available to all Shopify plans, Function Lab enhances your ability to manage online store functionalities with ease.