See this article for more information: https://discodery.zendesk.com/hc/en-us/articles/360036783811
To set a limited number of times a coupon can be used:
- Create a new coupon or edit an existing coupon
- In the second field "Count", enter the number of times this coupon can be used.
If you put "10", it will work for the 10 first people to use it.
If you want to have an infinite number of coupons, enter -1.
- Click "Save".