When entering a coupon ID number, remember, it is still an inventory item and must be unique throughout all of your inventory, sales, rentals, etc.
Make the Coupon Title meaningful so the customer understands it when it gets printed on the receipt.
The Type must be filled in with a Coupon Item Type.
Store cost is really a guesstimate. In this case, I am allowing my customers to use NEW releases for their free movies, and assuming my movies are $3, it will cost me $10 when I sell this coupon or Punch Card to them, because I would normally make $30 on 10 movies, now I am only making $20.
Put in the number of movies (that will go on the customers movie account), and the Sale price for this coupon.
The rest should be filled in for you automatically.
Click on History to see everyone who purchased this coupon.