Hi,
Sending coupons to customers is clear, the app will list the coupons you've sent However to track when and how many times have they come, you will need to somehow record this at your restaurant.
For this, a different app can be developed which will be installed at your restaurant staff and they can enter the coupon customer is using. If you want who used the coupon and not only which coupon was used when and how many times, the customer info can also be entered.
If you have a beterr streamlined approach in mind please explain.
thanks,
Nirandas Thavorath