A coupon makes the gift easier to get: it lowers the minimum amount needed to receive it. It doesn't change what the donor is charged.
For example: if a gift is received from 100 and the coupon is 20%, with the coupon it is received from 80. The donor donates the amount they choose.
Coupons are useful to reward a group (your volunteers or the people at an event) or to run a promotion by email or on social media. A coupon works on every form in the campaign that has gifts.
In the coupon's row, click "Copy link". That link opens the form with the coupon already applied: paste it as is in your email or post.
No. Each person can use a coupon only once.
It becomes Expired, or Used up when its uses run out. To use it again, change the date or the number of uses.