How to fix a discount or coupon that won’t apply
Web
Android
Sunmi
Updated Aug 2026
If a discount or coupon won’t apply, it’s usually a permission limit, an expired/invalid coupon, or applying it in the wrong place (line vs whole sale).
Step by step
- Check discount permissionCashiers may be limited on how much they can discount. A manager can authorise a larger one.
- Check the couponConfirm the coupon is valid, not expired, and applies to the items in the cart.
- Apply in the right placeApply a line discount on the item, or a cart discount on the whole sale — see discounts & coupons.
Frequently asked questions
Why won’t my discount apply?
Usually a role limit on discounting, an expired/invalid coupon, or applying it in the wrong place. Check the coupon’s validity and have a manager authorise a larger discount if needed.
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