Let shoppers pick their own products into a box, watch it fill in 3D, and check out as one bundle that still lands as itemised lines on the order.
The box fills, seals and turns as shoppers add products.
Capacity, minimums and maximums, set per step.
Sum, fixed or discounted pricing on the finished box.
Cart Transform expands the box into itemised order lines.
The box fills as products go in, then seals when the build is complete. Built to feel like a product, not a form.
Give each step its own capacity, minimum and maximum, and its own set of eligible products.
Price the box as the sum of what is inside, at a fixed price, or at a discount off the sum.
A Shopify Cart Transform expands the box into real component line items on the order.
A box built from ineligible products is rejected outright rather than checked out at the wrong price.
The builder ships as a theme app extension, so it lives inside your own theme.
Screenshots land with the App Store listing.