assigning codes to users that are not registered

We have several different shopper groups (e.g. "Tradespeople") that receive selected discounts on products. Now we also want to give users that are not yet registered a discount on some products. We initially tried applying the "-default-" shopper group to the discount, but the problem we are experiencing is that we get an error coming back: "the user needs to be registered". However, if we remove the "default" group from the coupon allowing everybody to apply a coupon, it means that registered users of other shopper groups (e.g. Tradespeople) can apply two different coupons: their own as well as the ones for everybody.

Is there any way to restrict a coupon to only unregistered users so that this coupon is not available to registered users?

Hello,

Probably the best way to do it is to use "Exclude" instead of "Include" and select the shopper groups you want excluded from the coupon.