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Quantity Increments

Quantity Increments restricts how customers purchase your products: they can only buy in specific multiples (packs, cases, or sets).

Product page with an increment of 5: the quantity box starts at 10 and a guide explains the allowed quantities

What your customers see on the storefront.

The Quantity Increments module is designed to give store owners full control over how customers purchase products by defining specific quantity steps. Instead of letting buyers enter any number, you can make products purchasable only in fixed multiples, for example, 5, 10, 15, and so on.

This feature is ideal for wholesale and B2B businesses, where products are often sold in cases, packs, or bundles. By using quantity increments, you can ensure all orders align with your packaging standards, simplify inventory management, and create a smoother buying experience for your customers.

  • Force purchases in defined multiples (e.g., only 5, 10, 15… never 7 or 12)
  • Automatically adjust the quantity selector in increments
  • Show validation messages when customers enter invalid quantities
  • Apply to specific products, collections, or all products
  • Naturally encourage bulk buying and higher order values

Use Case Increment Value
Bottled beverages sold as 6-packs 6
Apparel sold in dozen units 12
Industrial supplies in boxes of 24 24
Minimum case size of 50 50

Quantity Increments and Order Limits work together to give you complete purchase control:

  • Order Limits sets the minimum/maximum
  • Quantity Increments controls the step size between those limits

Example: Minimum 5 units, increments of 10 → valid quantities: 10, 20, 30…