Upsell offers and quantity breaks

Create an upsell offer

1. Open Offers → Upsell offers and create an offer.
2. Choose which products get it: all, specific products, or by collection.
3. Add tiers: quantity, discount and an optional label and badge (for example “Most popular”).

The shopper picks a tier, which sets the quantity on your normal Add to cart button. At checkout the discount applies to that product once the cart reaches the tier’s quantity. Different variants of the same product count together.

Size upgrades

Set Upsell type to Size upgrade. The tiers are values of one option (for example Size: M, L saves 10%, XL saves 20%). Picking a tier switches the product to that size with your theme’s own size picker, and the discount applies at checkout to that size.

Sizes per item

In Upsell offers → Design → Content keep Let shoppers pick a size for each item on. Choosing “Buy 2” then shows a size picker per item (for example M and L); your normal Add to cart adds each size, and the tier discount still applies.

Design

Upsell offers → Design sets the whole look with a live preview of your own offer: ready made looks, cards or a grouped list, offer and saving wording, heading style, colours, corners, spacing and devices. The theme editor only places the block.