Frequently Bought Together (FBT)
FBT discount setup
Configure the discount that fires when the trigger product and bundle items are bought together.
This article is a draft and may be incomplete or change before publishing.
The fbt-discount-function Shopify Function applies the discount only when the trigger product and at least one bundle item are in the cart together.
Discount type
- % off the bundle — Reduces the total cost of the trigger + bundle items together.
- $ off the bundle — Fixed-amount reduction on the bundle.
- % off the bundled items only — Discount applies to bundle items but not the trigger product. Common when the trigger is full-price and accessories are sweetened.
Combinations
The function honors Shopify's combination rules. To allow FBT discounts to combine with other discounts, configure the rules in:
Shopify admin → Discounts → (your FBT discount) → Combinations
Common gotcha
If the discount doesn't apply, check that both the trigger and at least one bundle item are in the cart. The function explicitly requires both — having only the trigger or only a bundle item won't fire the discount.