Caffeine Checkout Suite · Bundle Builder
Mix-and-match bundles, priced by a Shopify Function
Shoppers build a bundle from a collection on your storefront. The discount is not calculated in the browser: a Shopify Function reads the cart, checks every line against the collection and applies the tier you set. A tampered cart gets no discount.
Bundle Builder · tiers
DraftWhere it shows
- Bundle Builder theme block on any page of your online store
- The discount applies automatically in checkout as a Shopify app discount
Offers and tiers
- Up to 20 bundle offers, each built from a collection
- Up to ten tiers by item count, from 1 to 99 items, at 0–100% off
- The highest tier the bundle reaches applies to every line in it
- Optional product allowlist and a minimum number of different products
- Draft, preview, then publish
Why the discount holds
The Function trusts only what Shopify can verify.
- Quantities come from the cart, not from the storefront
- Collection membership is checked by Shopify inside the Function
- Percentages come from the discount's own configuration
- One ineligible line voids the whole bundle's discount
On your storefront
- Grid or list layout, solid or outline buttons, your accent colours
- Tier badges such as Save 10%, and an Add bundle button with the item count
- Subscriptions excluded by default, or allowed to stack
How it is measured
- Bundle revenue after the tier discount, with orders and units, in the offer funnel
- A/B tests on discount depth
Good to know
- Tiers are percentages, not fixed amounts
- Combines with order and shipping discounts, not with other product discounts
- Keep the default bundle message so orders are attributed
Also in the suite
Included on the same plan.
Checkout blocks
Trust, FAQ, review, shipping and message blocks for checkout, Thank you and Order status, with copy and images edited in the Caffeine portal.
Post-purchase offers
Offer one or two products between payment and the Thank you page. Accepting adds them to the order that was just placed, with no second checkout.
Upsells and recommendations
Add-on offers on product pages and in the cart drawer, plus a checkout upsell block, all driven by campaigns and product logic you set in the portal.
Experiments
Test storefront changes, checkout block content, recommendations, bundles, discount depth and post-purchase offers, with fixed or sequential statistics.
Analytics
One attributed-revenue ledger behind every report: revenue overview, offer funnel, post-purchase, offer history, products and experiment results.
Request access
Put the suite on your checkout.
Caffeine Checkout Suite is in Shopify App Store review. Request access and we will set your store up with you as soon as it is approved.