About this app
Shopify has no real minimum or maximum order setting. Theme tweaks and cart messages get skipped by Shop Pay, Apple Pay and other express checkout buttons, so a $20 order still slips past your $50 minimum. Mastiff enforces the rule at checkout itself, so every path is covered: minimum and maximum quantity, minimum and maximum order value, per-customer caps, and case-pack multiples. Scope rules to a product, variant, collection, or the whole cart, then test in the simulator before publishing.