Starting today, Shopify Functions are available to Shopify Plus brands who are not leveraging a
checkout.liquid customization. This means that Plus merchants can start building their own product or order discount Functions and deploy them with a custom app.
Please note that the rollout to eligible Plus shops will take a couple of weeks to complete. Plus brands that leverage a
checkout.liquid customization are not eligible to use Functions at this point in time.
Learn more about Shopify Functions here.