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Enforce MOQ, Min/Max cart limits, and case packs seamlessly with zero-bloat native performance.
Take full control of your B2B and retail checkout without slowing down your store. Koss runs purely on Shopify’s modern Checkout Extensibility. This guarantees bulletproof stability—even when customers apply complex discount codes. Easily enforce Minimum Order Quantities (MOQ), set min/max cart values, or require specific case pack multiples. Protect your margins and ensure profitable orders in minutes, with zero theme conflicts.
- Zero-Bloat Performance: 100% server-side Shopify Functions. No theme conflicts.
- B2B MOQ & Order Limits: Set minimum and maximum quantities or cart values.
- Case Pack Multiples: Force customers to buy in specific increments (e.g., 6, 12)
- Discount Code Proof: Rules stay rock-solid even when complex discounts applied.
- Display automated warning badges on product pages and cart alerts.
Languages
English
Works with
- Checkout
- Checkout Extensibility
- Online Store 2.0
- Shop Pay
Categories
Limit rules
Notification settings
Cart display
Pricing
Choose the plan that best fits your business.
Free Plan
Free
Features
- Up to 2 active order rules
- Min and max quantity limits
- Product page alert badges
- Native checkout validation
Starter Plan
$4.99 / month
Features
- Up to 5 active order rules
- Case pack step multiples
- Min, max and cart limits
- Email customer support
7-day free trial
Pro & B2B Guard
$9.99 / month
Features
- Unlimited active order rules
- B2B customer tag targeting
- Lifetime and rolling limits
- Custom dynamic error alerts
7-day free trial
All charges are billed in USD. Recurring and usage-based charges are billed every 30 days.
Reviews
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0% of ratings are 5 stars
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0% of ratings are 4 stars
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0% of ratings are 3 stars
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0% of ratings are 2 stars
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0% of ratings are 1 stars
Support
App support provided by KossLabs.
Data access
This app needs access to the following data to work on your store. Learn why in the developer's privacy policy .
View staff and contributor data:
Store owner
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Store owner
Name, email address, phone number, physical address
View and edit store data:
Products, Shopify Functions
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Edit products
Products, collections
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Edit Shopify Functions
Cart and checkout validations
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