Quantity offers without a fixed Mix and Max pack size on Shopify
Mix & Match bundles no longer have to use a fixed pack size. Shoppers add any quantity they like, and the offer they have earned applies automatically.
Table of contents
A fixed pack size turns away the shopper who wants seven. Mix & Match bundles no longer have to use one: switch off Fixed pack size and you can set quantity offers instead.
How it works
- Each offer unlocks a discount, a free gift or free shipping at a quantity you choose.
- There is no upper limit. A shopper can add three or thirty.
- Shoppers can always reach checkout, whatever quantity they have picked, rather than being blocked until they hit an exact pack size.
- The offer they have earned is applied automatically.
- It works the same way on Single Product and Multi Product bundles.
How to set it up
- Open or create a Mix & Match bundle.
- Switch off Fixed pack size.
- Add a quantity offer: the quantity, and what it unlocks.
- Add as many more as you want, for example 6 for 10% off, 12 for 15% off, 24 for free shipping.
- Check the live preview, then save and publish.
Fixed packs or open-ended?
Fixed packs are better when the pack is the product and the packaging depends on it: a six-bottle case, a twelve-pack box. Open-ended offers are better for refills, pick-and-mix and anything where the shopper's own quantity is the point, and they avoid losing the order from someone who wanted an awkward number.
Availability
Mix & Match bundles are on the Growth plan ($14/month as of October 2026). Existing bundles keep their fixed pack size until you switch it off.
Setup guide: How to add a discount to a Mix & Match bundle
Reviewed for accuracy
This article was reviewed by the PushBundle Technical Support Team, who regularly helps Shopify merchants test bundle setup, product selection rules, bundle pricing, cart behavior, and checkout-related bundle issues.
About the author
Touhid Islam
PushBundle Contributor
