Every discount you launch is a bet on your margins. Miss the math once, and one promo can wipe out an order's profit. Smart Bundles & Margin Guard sets a gross margin floor and enforces it live at Shopify's checkout: our Function reads the cart, computes margin using your COGS, and blocks any discount that would push the order below your floor. Every decision is logged with the exact margin. Fully auditable trail.

• Blocks discounts that would push order margin below your floor
• Runs as a Shopify Function — margin evaluated live at every cart, not after
• Full audit log — every APPROVED or REJECTED decision with reasoning