Do Shopify B2B quantity rules count across a product's variants?

Can buyers mix variants to meet a minimum or increment?

Shopify's help page says minimum and maximum rules “apply to product variants”. Its example is a hat in blue and gray, with a minimum of 10 on each:

Increments work the same way: for products boxed in multiples of 10, an increment of 10 means buyers purchase each variant 10, 20 or 30 at a time, and 5 gray plus 5 blue hats don't make one step.

How should you set rules for a product sold in several variants?

Enter each minimum, maximum and increment as a quantity for one variant, because that is how Shopify counts it. A rule you think of as “10 hats per order” really means 10 of every color the buyer picks.

Take the hat with a minimum of 10 and an increment of 10 on all variants. A buyer who wants three colors has to order at least 30 hats, 10 of each. An order of 25 gray and 5 blue fails on both lines: 5 is under the minimum, and 25 isn't a multiple of 10.

So set the per-variant number from what you actually ship, such as one case of that variant, and use the variants link when colors or sizes pack differently. If you need a total across mixed variants, native rules can't count it; see how to set a B2B minimum across mixed variants.

Price breaks split the same way. With a break at 20, an order of 30 gray and 10 blue hats gets the break price on the gray line only, even though the 40 hats clear it combined.

Where do you set quantity rules, and what do buyers see?

In Markets > Catalogs, hover over a product to set rules for all its variants, or click the variants link under its name for a single variant. Either way, Shopify's Admin API defines each quantity rule for one product variant, and its quantityRulesAdd mutation sets rules for specific variants.

Quantity rules and quantity price breaks are on every B2B plan: Basic, Grow, Advanced and Plus. Shopify opened them to non-Plus plans on April 2, 2026, and below Plus, B2B catalog features need the new Shopify Markets.

On Plus, when several catalogs assigned directly to one company location include the same variant, the store shows the quantity rules and volume pricing of the catalog with the lowest price for that variant. Set the rules in that catalog; on a tie, Shopify shows them from the catalog created first. See which catalog applies.

Rules apply to line items and are re-validated in checkout, so buyers can only add and purchase quantities your rules allow. Make sure your theme displays the minimum on the product page.

Volume price breaks, a separate setting, also count per variant: each variant must reach the break quantity, and when you add breaks in the admin, each must be greater than the minimum and a multiple of the increment. Our MOQ and quantity-breaks guide shows how to price around them.

What changes when you set quantity rules by CSV?

The catalog CSV holds quantity rules one row per variant: Quantity Increment, Minimum Order Quantity and an optional Maximum Order Quantity. Increment and minimum both need a value of 1 or more to set a rule.

Price breaks are where two Shopify pages disagree. The CSV help asks that a Quantity Break be a whole number equal to or greater than the minimum, with a matching Price Break, and says nothing about the increment, while the admin dialog wants each break greater than the minimum and a multiple of the increment.

Write CSV breaks to the admin's stricter rule: with a minimum and increment of 10, use breaks of 20 and 50 rather than 10 or 25, so the catalog follows one rule whichever way you edit it. To check what is live before re-importing, export the catalog with Only products with quantity rules selected.