This method will be deprecated on September 30, 2025.
Replace with Update Discount Rule.
Updates a discount. A discount can belong to a catalog, section, or dish. You can't create a discount that applies to a menu.
You can only call this method when authenticated as a Wix app or Wix user identity.
This method doesn't return any custom errors, but may return standard errors. Learn more about standard Wix errors.