To generate new coupon code
Go to Commerce > Marketing > Promotions > New.The promotion name, start ,end date etc can give.In eligibility subtab our crieteria for giving promotion can give. In below image Minimum purchase of 250 CAD is given for an order.Coupon code can be used in website to get the promotion. Here #TESTIMONIAL the text has to give in the shopping cart coupon code section and can apply.
By applying coupon code a discount is available.The original price strike off and shown new discount price. This coupon code will passed to review page also.
