Before using Promo Codes remember to enable this option by setting promo_codes to true. When the option is enabled the field will be visible in the Shopping Cart.
You can define new Promo Codes using following markup:
|Promo Codes (examples)||Discount value||DESCRIPTION|
|“discount30%”||“30%”||Customer will get discount equal to 30% of the full price|
|“discount300$”||300||Customer will get discount equal to 300 in the currency which is used in the shop|
Creating promotional codes you need to remember that the codes that your clients will use, need to be a string value in the script.
The discount value for the Promo Codes can be set as a string (it has to end with %) or as a number.