What are the types of coupons I can create?

Zoho Checkout has support for 3 types of coupons:

You can choose the type of coupon you want to create based on how you want the discount to be applied.

For example, if you would like to provide a 15% discount for the first 3 months on your monthly payment page, you would create a coupon with the type as Limited Number of Times with the value set to 3. Now when a customer uses this coupon, a discount of 15% of the invoice amount (excluding taxes) will be applied during checkout and for the next 2 successive renewals.