I'm hiring a salesman. I would like to be able to track orders that he generates. I was thinking about using a coupon that he would know so that whenever I receive an order that used that coupon, I'd know it came from him. I don't want the coupon to generate any discounts, just some kind of alert that the order in question used or didn't use the coupon. Is this possible or is there another way to track the origin of orders?
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