How are codes and coupons redeemed or validated?

It depends on where your customers receive their benefit of your coupon. 

If you run an online store, you would normally create a list of unique coupons that you import into Coupon Carrier for distribution. Your customers will then usually enter the coupon during checkout to receive a discount. Your store will validate that the coupons exist and what discount it should give.

For offline businesses, like restaurants or events, you might not be able to generate any coupons. To solve this Coupon Carrier can generate new random coupons and distribute these to your customers. Read our guide for offline businesses here: How to distribute unique codes for restaurants, physical stores, and events.