CartRules
- by MPC TRADES
- Free plan available
- by MPC TRADES
- Free plan available
Block discount codes and limit order quantities on specific products automatically. Protect margins and prevent abuse with simple rules.
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About the CartRules
CartRules helps merchants protect profit margins and prevent discount code abuse by blocking codes and setting quantity limits on specific products, tags, or collections. Create rules in minutes to control which products customers can apply discounts to and cap maximum order quantities per item. Display custom messages on product and cart pages explaining why limits apply, keeping customers informed throughout their shopping experience. When multiple rules affect the same product, the app automatically applies the most restrictive limit to eliminate conflicts. No coding or theme editing required—simply select products by tag or collection and set your rules. Perfect for merchants who need to maintain pricing integrity on premium items, prevent bulk buying abuse, or exclude certain products from promotional campaigns while still offering store-wide discounts.
Launched: October 12, 2026
Key features
- Block discount codes on selected products, tags, or collections
- Cap the maximum quantity customers can buy per product per order
- Show a custom on-page message explaining why a limit applies
- Applies the most restrictive rule automatically when several overlap
- Set up rules by product tag or collection in minutes, no coding
Integrations with:
- Checkout
Category:
Pricing of CartRules
Free
Free
- 3 active rules
- Both rule types
- Default customer messages
- Product & collection targeting
Growth
$4.99 / month
- Unlimited rules
- Custom messages, any language
- Tag & collection targeting
- Email support
Pro
$9.99 / month
- Everything in Growth
- Product-page notices
- Per-customer limits (v2)
- Priority support