How to Set a Minimum Order Quantity per Product

Minimum product quantity

Add a Product Min Quantity limit, pick the products it applies to, and set the minimum for each. Checkout is blocked if the cart contains that product below its minimum.

Applies to: All Shopify plans
Specific products you select
Doesn't apply to: Products you have not added to the rule
Locking the storefront quantity picker — that needs metafields

Want the quantity picker itself to enforce it? See how enforcement works

Some products are not worth selling in ones. Custom printing has a setup cost, wholesale ships in cases, and perishables have a batch size.

Before you start

Which products need a minimum, and the number for each.
Whether you also want the product page to stop customers picking a lower number — see how enforcement works.

Steps

1. Install Nex Validator

Search Nex Validator in the Shopify App Store, or use the button below. Approve the permissions and the app appears in your admin under Apps. There is a free trial, and it works on every Shopify plan.

Install on Shopify Already installed? Skip ahead

2. Go to Simple Order Limit → Create Rule.

3. Give the rule a title, and switch Enable/Disable Limit on. A rule that is saved but not enabled looks identical to one that is not working.

4. Open the Product tab, choose Product Min Quantity, and pick the products and set a minimum for each.

5. Write the message, then save. Name the product and the number — a customer with several items in the cart needs to know which one is the problem.

Verify it worked

Cart with that product below its minimum → blocked.
Cart at the minimum → completes.
Cart without the product → unaffected.

Common setups

Goal	Minimum
Custom-printed goods with a setup cost	Your break-even run
Wholesale case quantities	The case size
Fresh or perishable batches	Batch size
Made-to-order items	Whatever justifies a production run

If everything ships in fixed multiples rather than a simple floor, product bulk limit handles multiples-of properly.

Frequently asked

Does the customer see the minimum before checkout?

Not by default. This limit blocks at checkout. To lock the quantity selector on the product page as well, you need the product metafield and the app embed — see how enforcement works.

Does it apply if the product is not in the cart?

No. The limit only applies once that product is present.

Can different products have different minimums?

Yes. Each product added to the rule carries its own value.