Generally, Fanatics allows only one promo code to be applied per order. This means that customers cannot stack multiple promo codes for a single transaction. When placing an order, if a customer enters a promo code, it will replace any previously entered code. It is always a good idea to check the details of the promo code for any specific terms and conditions as they may vary. Additionally, customers may occasionally find limited-time promotions or site-wide discounts that do not require a separate promo code. For the most current information on promotions and offers, customers should refer to the promotional banners or sections on the Fanatics website. This ensures that they are aware of any special deals available when placing their order.