Can my Customers add a coupon through the Checkout?

Yes, customers can applied the coupon through the Checkout. To do so, you should have the review page activated in your plan checkout. The coupon field is included on this step of the checkout.

Step1: Go to Plans> Edit > Checkout (Tab)> Enable “Require Customers to review their plan before subscribing”

Remember to share your Coupon code with your customers-