When should I use variant limits instead of product limits?

Use variant limits when only one option sells out fast (popular size, limited colorway, premium engraving) and you want to distribute it fairly without restricting the rest of the product.

Can I combine variant limits with product-level limits?

Yes. Both apply. For example, max 100 T-Shirts per week AND max 30 Large T-Shirts per week, shared across all shoppers — the Large cap is hit first if that size sells faster.

Can I set a different limit for each size or colour on Shopify?

Yes. Set the limit on the variant rather than the product, so a cap on Size Large leaves every other size untouched. Switching variants on the product page re-applies the correct limit automatically.

What happens if a product limit and a variant limit both apply?

Both count. When a cart is checked, a variant with its own limit is measured against that variant's cap; once the product-level cap is reached, every variant of the product is blocked. So you can set a general product cap and tighten it for the one variant that sells out.

How do I limit a limited-edition colourway to one per customer?

Per-customer limits target a whole product or collection, not a single variant. So list the colourway as its own product, or put it in its own collection, then add a per-customer limit on it with a maximum of 1 and a Lifetime period. A plain variant limit is a shared total for the whole store, so it can't cap one buyer. Customer limits require login, so the count follows the customer account rather than the checkout session.

Per-Variant Limits

3 min read · Facts checked October 12, 2026

Limit Specific Variants

Sometimes the constraint is not on the product as a whole but on a particular variant. OrderRules lets you set limits at the variant level so you can restrict popular sizes or options without affecting the rest.

How to Set Variant Limits

Go to Product Limits
Click + Add Product Limits (or Edit Limits on an existing product)
Select the product
Under Variant overrides, click Set override on the variant you want to limit (for example, "Size Large")
Enter Daily, Weekly or Monthly values under Order Limits or Quantity Limits, plus a step if needed. A per-variant minimum is set through the CSV import
Click Save Limits

Example: T-Shirt Size Limits

Product:   T-Shirt
Variant:   Size Large
Max:       30 per week (shared total)

Other sizes: No limit

Result:
  Orders this week take 30 Large shirts: OK
  Next customer adds a Large shirt:      Blocked until the week resets
  Customer orders 10 Small shirts:       OK (no limit on Small)

Example: Limited Color Run

Product:   Handmade Mug
Variant:   Color: Gold Edition
Max:       20 per month (shared total)

Result:
  Orders this month take 20 Gold mugs: OK
  Next customer adds a Gold mug:       Blocked until next month
  Customer buys Blue mug:              OK (no limit on Blue)

Product level versus variant level

Set at	Applies to	Use when
Product	Every variant of that product	The whole item is constrained
Variant	One variant only, others unaffected	A single size or colour is the bottleneck

A variant-level rule takes precedence over the product-level one, and switching variants on the product page re-applies the correct limit.

When to Use Variant Limits

Popular sizes that sell out fast and you want to distribute fairly
Limited colorways or special editions within a product line
Different production capacity per variant (for example, custom engraving only available in small batches)
Premium variants that are more labor-intensive to produce

How It Works at Checkout

If a customer exceeds a variant-level limit, checkout displays a specific error:

"T-Shirt (this variant) has reached its weekly quantity limit and cannot be purchased at this time."

The error names the product and flags the line as "(this variant)". It doesn't print the variant name, so the shopper finds it by the line in their cart.

Combining with Product-Level Limits

You can set both product-level and variant-level limits. Both are enforced:

Product limit: Max 100 T-Shirts per week (any variant)
Variant limit: Max 30 Large T-Shirts per week

Both are shared totals across all shoppers. Once 30 Large shirts have sold this week, Large is blocked even if the product total is still under 100; once 100 shirts of any size have sold, every size is blocked.

Per-Product Limits Collection Limits