Storefront Usage

The plugin adds a single field to the shop API: ProductVariant.priceTiers. Use it on the product detail page to render a quantity-break ladder, and on cart updates to show savings as the buyer changes quantities.

The priceTiers field

Each PriceTier is one rung of the ladder the active shopper would see for this variant. To build the ladder, the plugin collects every break point - the minQuantity from each variant-specific entry, plus every breakpoint in the list's defaultQuantityBreaks - and runs the full matching pipeline at each one. That guarantees the storefront sees exactly what the cart engine would compute at that quantity.