If you have been using the promotion system in Episerver Commerce (or should I call it “old promotion system” – the “new promotion system” is almost out of BETA and it will soon be the promotion system), you should know about the coupon – which is an option setting for a promotion. When it is set, the customers will be required to input that special code in order to get the reward, even if their carts fulfilled all other requirements (the subtotal, the lineitems, the shipping method etc.)

The coupon in old promotion system is quite basic – you can set only one per promotion, or nothing at all. Advanced scenarios like customer-specific coupons (there are multiple coupons and each of them is valid for only one customer) are not supported. (This is one of reasons why you should consider to move to new promotion system ASAP). You can use redemption limits in combination to specify how many times a coupon can be used. But in this post we will talk about the quirks of storing it.

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