CartShield Changelog

Official debut of CartShield: Checkout Rules & Validation engine on the Shopify App Store.

• Shopify Functions Validation: Built natively on purchase.validation.run for sub-5ms WebAssembly execution at checkout submission.
• PO Box & Locker Guard: Automatic regex pattern matching for USPS PO Boxes, APO/FPO bases, and private locker hubs.
• Add-on / Sample Protection: Prevent sample kits or heavily discounted promotional items from being ordered alone.
• B2B Wholesale Step Multiples: Enforce master carton / case quantity multiples on designated product tags or collections.
• Minimum & Maximum Spend Limits: Enforce checkout thresholds for clearance or special category goods.
• Polaris 12 Merchant Dashboard: Intuitive rule management dashboard built with Shopify Polaris design standards.
• Shop Metafields Cache: Sync rule definitions into shop metafields for zero-network-latency validation.