HBN: Discount Floor Guard

The HBN: Discount Floor Guard app helps ecommerce merchants enforce discount floors and markdown limits at checkout without the need for theme setup. It allows users to set checkout guardrails for promotions, reject conflicting discount codes, block checkout when final line amounts violate rules, create storewide or targeted safeguards, set minimum final amounts or maximum markdown percentages, protect sale items from additional discounts, add exemptions, and preview outcomes in the simulator. Enforcement is done through Shopify Functions.