First, click "Coupon rewards"
Here you can set various coupon details.
Price conditions: You can set different price rage corresponding to your ideal coupon.
Instructions: The name of the coupon (business activity...etc)
Types: You can choose from 3 different types: Percentage, Fixed and customer.
For example, you can set 10% discount coupon, 5 dollar fixed coupon, or customize your own coupon.
Value: The value of the coupon.
Min price: The minimum price when using this coupon.
End date: The date when this coupon expired.