DiscountLock ‑ Protect Profit

DiscountLock helps you set maximum dollar caps on percentage discounts so you never give away more than you planned. Shopify's native percentage discounts don't limit the discount amount — a 20% off promotion on a $2,000 item gives $400 off, even if you only wanted to cap it at $50. This app adds a simple dollar limit to your percentage discounts. Set your discount percentage and maximum cap amount, and the discount automatically stops at your limit during checkout. You can apply caps per line item or per entire order, giving you full control over your profit margins. The setup uses the same familiar discount settings you already know from Shopify's native discount page, with the cap amount field added in. Protect your margins while still running attractive percentage-based promotions.