This method is deprecated and was replaced with createDiscountRule.
Creates a discount. You can create discounts for catalogs, sections, or dishes. You can't create a discount that applies to a menu.
This method may require higher-level permissions than the caller has, based on their identity and roles and permissions. In these cases, you can ensure the method is called with the required level of authorization by using one of the following:
ID of the catalog the discount belongs to.
This method doesn't return any custom errors, but may return standard errors. Learn more about standard Wix errors.