What this guide covers
Choose custom, fixed, or quantity breaks by asking what the shopper should select.
Choose custom when the mix is the product
Use a custom bundle when shoppers should choose among several eligible items, complete sections, or unlock gifts.
Choose fixed when the contents are known
Use a fixed bundle when one sellable product should expand into a specific component recipe with exact per-item prices.
Choose quantity breaks for one SKU family
Use quantity breaks when shoppers buy more of one whole product to reach percentage milestones.