Quick answer
Pick trigger PDPs, add add-ons with variant rules, set addons_only discount, choose checkbox list or product cards, require at least one add-on by default, activate embed.
- FBT lives on trigger PDP.
- Pre-select add-ons for faster discount visibility.
- Mobile card layout.
- No Cart Transform in FBT v1.
Readiness rules
Trigger variant cannot be add-on; no duplicate add-on variants.
Readiness blocks publish until trigger and add-on configs are valid.
Coexistence
May hide when inline fixed kit on same PDP — configure show_below if needed.
Offer priority determines one winning FBT per PDP.
Display styles
checkbox_list for compact catalogs. product_cards when add-on imagery drives conversion. Pre-select add-ons to surface discount faster.
Attribution
_kitforge_fbt_* line properties tie orders to offers in analytics. Compare attach rate weekly, not only revenue.
Final recommendation
FBT is the best Kitforge pattern for accessory-heavy catalogs.
If you want this kind of offer to feel native to the buying journey, Kitforge Bundles is built around that exact problem: turning related Shopify products into clearer bundle offers before the shopper reaches checkout.
FAQ
Multiple FBT on one page?
One FBT offer per PDP after priority sort.