Dulles International is an international airport near Washington, D.C. Its parking service uses the Coupontools platform to distribute coupons with QR codes and a webpage URL. Parking customers can find coupons for discounted parking upgrades distributed on posters.
The validation process is done by tablets by using our validation app.
Every cashier has his own validation code so it is possible to track every redeemed coupon. This way the system is protected from fraud.
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