When you create a discount for your store, you have the option of making it a coupon by specifying a coupon code required to activate the discount:
On the checkout page, shoppers must type in whatever value you chose in the Coupon Code field:
This field displays on all new stores by default, but if it doesn't appear for you:
- Log in to your Admin Area.
- Go to Settings > Config Variables.
- In the Filter drop-down menu above the table, select Checkout variables.
- In the Enable Coupon Codes row, select the Value check box.
- Click Save.
You can then provide the coupon code to your customers by any means that you like (for example, through a newsletter). Note that coupon codes are not case-sensitive; your customers will be able to redeem a specific coupon code whether they type in all caps or lowercase letters. However, coupon codes cannot contain special characters or punctuation (such as % and $), or they'll cause errors when shoppers attempt to redeem them.
For more information on coupon configuration options and coupon code considerations, see Coupons / Discounts Settings.