If you do not see Coupon listed as a payment method type on the payment method drop down, it will need to be activated.
To set Coupons up as a payment method, you perform the following steps:
The Code Table window opens.
For more information on Code Table Payment Methods, click here.
Select whether the coupon payment method will be available as a payment method at the Box Office, Internet Sales, Development or a combination of the three.
Coupon is now be available as a payment method.