Status: Coupon status will determine if the coupon can be used or not.

Coupon Name: Enter a name of a new Coupon

Coupon Description: descriptive text you want to appear on the storefront

Code: The code the customer enters to get the discount

Type: Select the Percentage or Fixed Amount

Discount: Coupon discount amount. If type is Percentage then this percent is subtracted from the total price. If the type is set to a Fixed amount, then this fixed amount will be deducted from the sub-total.

Total Amount: The total amount that must reached before the coupon is valid.

Customer Login: Select Yes to require customer to log in before using the coupon, or No to not require it.

Free Shipping: Select Yes to give customer free shipping, or No to charge shipping.

Date Start: Set the start date for when you want the coupon to be start.

Date End: Set the end date for when you want the coupon to expire.

Uses Per Coupon: The maximum number of times the coupon can be used by any customer. Leave blank for unlimited

Uses Per Customer: The maximum number of times the coupon can be used by a single customer. Leave blank for unlimited

Total Coupon Usage: The number of times the coupon used by all customers.

Selected Products: Select which products you want to apply the discount amount to.
If none are selected then the discount amount will apply to all products.

After you have made your changes, select the SAVE button