The stats for coupon campaigns can be viewed by scrolling down to Punchh Platform >> Campaigns >> Campaigns>> Select Offers >> Coupon
Once here, you will select the 'Stats' graph:
Notice how the data is now available under the graph icon:
Coupons Generated: For a particular campaign how many coupons have been generated.
Guests: How many guests have visited that particular campaign.
Redemption: How many redemptions have been applied to that particular campaign.