01) Access the Control Panel
02) After login click Clients >> Discount Coupons
03) Click on the NEW CUPOM button
Save Coupon code:
Write a Description
In the Total Discount field, read the example to generate the discount
Select a Start Date and End Date
The Max Use field refers to how many times it can be used
The Minimum Order field is optional
The Number Available field refers to how much will be available
04) Click the INSERT button
After inserting you can create use rules like Product Exclusion, Manufacturer Exclusion, Category Exclusion, Client Exclusion
Video: https://www.youtube.com/watch?v=nv8VxezESfU&feature=youtu.be