Admin guide
Coupons
Percentage, fixed, and free-shipping codes with constraints.
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.
On the payment page
When you create a coupon, the discount also shows up by name on the secure payment page itself, not just on your own cart summary.
Code uniqueness
Codes are unique to your store - two different stores can both use
SUMMER10 without any conflict.
Customer-facing validation
Shoppers can paste a code in the cart and immediately see the discount preview. NShop runs the same checks there as it does at checkout, so what they see is what they'll pay.