Coupons

Create discount codes at /admin/coupons.

Types

• Percentage — N% off the subtotal.
• Fixed amount — €X off the subtotal.
• Free shipping — zeroes the shipping line.

Constraints

• Minimum subtotal — e.g. "€50 to qualify".
• Usage cap — total number of redemptions, across all customers.
• Expiry — the moment after which the code stops working.
• Active toggle — pause without deleting.

Stripe mirroring

When you create a coupon, NShop mirrors it as a Stripe Coupon so it appears with its proper name and discount on the Stripe Checkout page itself, not just on your own summary.

Code uniqueness

Codes are namespaced per tenant — two stores can both have SUMMER10 without conflict. (The document ID is {tenantId}_{code} under the hood.)

Customer-facing validation

Shoppers can paste a code in the cart and immediately see the discount preview. The validation endpoint runs the same server-side checks as checkout, so what they see is what they'll pay.