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Option to restrict to one code per order: Dealers who want to limit customers to a single being able to enter only one coupon code per order can contact support to enable that option. (Once the user enters one code, the button to enter more is removed...so if you have a code for mugs and a code for canvas and the customer orders both products, they can only enter one of those promotions.) However, even with the single-coupon setting, there could still be multiple discounts applied to an order depending upon a dealer's configuration since a) not all discounts require a coupon, and b) a single coupon code can activate multiple discounts.
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