single promo code for different products with different discounts.
Since WHMCS only allows one promocode to be entered during checkout I would like to use one promo code to discount different products by different amounts. So for example. I'd like to create promo1 with a 10% discount to product1 and a 20% discount to product2. If the customer orders product1 and product2 at the same time the correct discount would be applied to each product.