CartLock protects merchant profit margins by preventing customers from checking out below a set order value. Built natively with Shopify Functions, it executes server-side at checkout without modifying theme files. Unlike older apps relying on cart scripts, CartLock cannot be bypassed by express checkouts like ShopPay, ApplePay, or GooglePay. Customize error messages with dynamic spend variables, set thresholds in seconds, and eliminate low-value, packaging-heavy orders effortlessly.

• Edge checkout validation powered natively by Shopify Functions.
• Blocks 1-click & express checkouts including ShopPay, ApplePay & GooglePay.
• Custom error messages with dynamic {minSpend} and {subtotal} variables.