Built for Shopify Checkout Extensibility. Order rules run in native Shopify Functions (WASM) directly in Shop Pay & checkout with zero store speed impact. Enforce minimum order quantities (MOQ), case pack increments, and order limits per product or customer tag. Automated product page warning badges guide shoppers before checkout.

• Set minimum order quantities (MOQ) and maximum purchase limits per product.
• Enforce case pack increments and step quantities for wholesale purchases.
• Display warning badges on product pages and live alerts in cart drawers.

Koss Ship gives you complete control over your checkout shipping options using Shopify Functions. Automatically hide specific carriers like FedEx and UPS when a buyer enters a P.O. Box address. Create custom shipping rules based on cart subtotal, product tags, or customer groups. Reorder delivery methods to prioritize preferred options or rename technical carrier rates. Reliable, lightweight, and built directly for the modern Shopify checkout.

• Hide shipping rates dynamically based on P.O. Box addresses or ZIP codes
• Restrict delivery methods using cart subtotal, product tags, or customer tags
• Reorder and rename checkout shipping options to highlight preferred carriers
• Built with native Shopify Functions running seamlessly during checkout
• Simple no-code delivery rule configuration inside Shopify Admin

Koss: Reorder & PDF Invoices simplifies the post-purchase experience for your store. Customers can instantly reorder past purchases directly from their account page, transferring line items seamlessly to checkout. Buyers can also download clean, tax-compliant PDF invoices with complete tax breakdowns without contacting support. Easily customize your business details, VAT ID, and button labels to match your brand identity. Fully secure and compliant with privacy standards.

• 1-Click reorder: Let customers reorder past items from their order history.
• Instant PDF invoices: Provide downloadable, tax-compliant vector invoices.
• Store customization: Add legal business name, registered address, and VAT ID.
• Privacy-first design: Zero permanent data storage for full privacy compliance.