Kraft: Cart Add‑ons & Fees

Kraft puts paid add-ons in your cart drawer and on your cart page: shipping protection, gift wrapping, a packaging fee, an eco offset, express delivery, an extended warranty. Price each one as a flat fee or a percentage of the order, with a floor and a cap, and offer it only on the products you choose. Every add-on arrives at checkout as its own line item, so pricing and fulfillment stay clear, and orders tag themselves. Installs as a theme app extension: no theme code, no checkout changes.