Our customers are able to use a Discount Coupon - we do not want to apply it to a particular - Category - our Clearance Category.
Can you tell me how?
Welcome to Magento.SE!
This is quite easy to do. In your coupon rule's
Conditions tab you will want to set up a rule like this:
This tells the rule NOT to apply if it ever finds 1 or more items in the cart where the category is your discount category. Make sure to fill in the proper category ID there.
Hope that helps! Cheers!