S
Samy
Currently, when creating a digital coupon, it is possible to make the phone number field unique. However, this restriction is not enough to prevent fraud. The same customer can easily use a second phone number to sign up again and get another coupon.
As part of marketing campaigns offering very attractive discounts (for example, a hamburger at 50% off), malicious users can accumulate and use several coupons by entering different numbers. This generates direct losses for retailers and distorts the effectiveness of promotional campaigns.
Proposed solution:
Add an SMS identity verification option when registering:
  1. A temporary 4-digit code is sent by SMS to the number entered by the customer.
  2. The customer must enter this code in the form to validate his identity.
  3. Once the code is confirmed, the coupon is issued to him.
Benefits:
Securing campaigns
Data reliability
Profitability protection
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