Restrict commerce coupon by user role I am making a drupal commerce site. For coupon functionality I am using commerce_coupon module .  

My question is How can I restrict a coupon by user roles i.e. a particular coupon should be applicable only for authenticated users .

I have already installed Commerce Coupon - Per user redemption installed which gives me coupon per user functionality . But I want commerce coupon by user roles.

How can I achieve this ?
The coupon's applicability is tied to the discount. Use Commerce Discount and Commerce Discount Extra. Commerce Discount Extra provides an inline condition that lets you specify a user/role condition for an order, which is exactly what you want.