FDA messaging surfaces correctly per product category
Custom checkout messages and product limits — solved in one app.
US wellness brand needing both regulatory messaging at checkout and per-customer cart limitations. Both shipped via Checkout Ninja blocks instead of three separate apps.
What wasn't working.
Wellness regulations + per-customer limits in one checkout
Lumebox operates in a wellness category with specific FDA disclosure requirements at the pay step. They also enforce per-customer purchase limits to prevent stockpiling during sales. Native Shopify handles neither natively — they were running three separate apps for messaging, conditional visibility, and cart-rule enforcement.
What we shipped.
Notice Block + Conditional Visibility + Checkout Rules
We replaced the three-app stack with three Ninja blocks: Notice Block for the regulatory disclosure (date-scheduled so seasonal product updates surface automatically), Conditional Visibility tied to customer purchase history to enforce limits, and Checkout Rules to block over-limit carts before the pay step.
What changed.
Eliminated three single-purpose checkout apps
Reduced subscription overhead vs old stack
Single support contact instead of three
If you're looking for a solution to customize messages and cart limitations at checkout, Checkout Ninja Blocks is the perfect app! Fantastic support — they worked closely with us to create a custom solution that fit our exact needs. A game-changer for our store.
Three more deep-dives.
What Lumebox actually ran.
Every block, template, use case, and blog post connected to this story — clickable, so you can map the exact stack to your own store.
Blocks they deployed
Templates available for the same stack
Install. Ship. Get written up.
Every merchant on this page got listed with their permission. Run Checkout Ninja for a quarter — if we like the story, we'll write you up too.