Shopify app
Korbora Quantity Rules & MOQ
Enforces minimum, maximum and step quantities — sold in packs of six — per variant, product, collection and customer tag, plus cart minimums, on any Shopify plan.
Coming soonAbout
What sets it apart
The rules are enforced at checkout by a Shopify validation function, so they hold even when a buyer edits the cart or another app changes a quantity. Pricing is flat, with no order or revenue caps, and nothing needs Shopify Plus.
Set a minimum, a maximum, or a step — “sold in packs of six” — on a variant, a product, a collection or a customer tag, and a minimum for the cart as a whole. The storefront shows the rule next to the quantity field and rounds to the nearest valid amount; the cart corrects lines that no longer fit; checkout refuses anything that slipped past both.
The rules live as metafields on your own products, so they are yours to read, export and keep.
In the app
See it in action
- Dashboard
Whether the storefront embed and the checkout validation are on, thirty-day counts of auto-corrections and blocked checkouts, and a three-step onboarding checklist.
- Rules for products
Minimum, maximum, step and pack label per product or variant, edited inline or in bulk, with a badge for rules that came from a CSV import.
- Rules for collections
A rule per collection, with a priority order for products in more than one.
- Rules for customer tags
Override or exempt rules for customers carrying a tag — wholesale accounts, for example.
- Rules for the cart
A minimum cart value, and minimum and maximum total quantities.
- Messages
The hint text shoppers see, per language, with placeholders for the step and quantity, and a preview.
- Design
Hint style, rounding direction, whether add-to-cart is disabled while a quantity is invalid, and selector fallbacks for non-standard themes.
- Import
A CSV template for bulk-loading rules as product metafields, and a re-scan that counts what was imported.
- Plan
The current plan and its limits.
Safe by design
What you can count on
Enforced at checkout, not only in the theme
A Shopify validation function checks every cart, so your rules hold even when a buyer edits the cart or another app changes a quantity.
Your rules stay in your store
Minimum, maximum and step are metafields on your own products — yours to read, export and keep, even after uninstall.
Works on any Shopify plan
Enforcement runs as a checkout validation, which every plan supports. Nothing needs Shopify Plus, and pricing is flat with no order caps.
Rounds instead of blocking
The storefront rounds a quantity to the nearest valid amount and shows the shopper why; the cart corrects lines that no longer fit.
Questions
Before you decide
Does it work on Basic Shopify?
Yes. Enforcement is a Shopify checkout validation function, which runs on every plan. Nothing here needs Shopify Plus.
A variant and its product both have rules. Which wins?
The variant, field by field. A variant minimum beats the product minimum; where the variant sets nothing, the product value applies.
A customer tag rule and a collection rule both apply. Which wins?
The tag rule.
What about bundle or subscription apps that change quantities?
The storefront hint still shows, but lines with bundle properties or a selling plan are not auto-corrected in the cart. The checkout validation still checks them.
What stays if I uninstall?
The metafield definitions and the rule values on your products — they are your data. The app's own records are cleared after 48 hours.
Which access does it ask for?
Products, to store your rules as metafields; the checkout validation that enforces them; your store's primary language, read once at install; and an app proxy the storefront embed reads rules through. Not your orders, not your customers, not your theme.
What does it not do?
Quantity discounts or volume pricing, B2B companies and catalogs, POS, draft orders, purchase-frequency limits, weight-based rules, or stock checks at checkout. Cart minimums apply in your base currency only, in version 1.
Korbora Quantity Rules & MOQ is not on the App Store yet.
If you want to hear when it is, or want to know whether it fits your store, write to info@korbora.com. Nothing is stored and no list is kept — it reaches a person.