Quantity rules written as text on the product page get ignored, and orders you cannot fulfill profitably still reach checkout. Prime MOQ makes the rule real. Set minimum and maximum quantities, pack multiples, cart value, cart weight, or repurchase frequency, scoped to products, collections, product tags, vendors, product types, or the whole store, and limited to chosen customer tags, segments, or countries. Enforcement runs through Shopify Functions, so limits hold in the cart and at checkout.

• Set min and max quantities per product, variant, collection, tag, or whole cart
• Sell in packs by enforcing quantity multiples such as 6, 12, or 24
• Limit carts by total value or total weight, with minimum and maximum thresholds
• Apply different rules to specific customer tags, segments, or countries
• Block checkout automatically when a cart does not meet your rules