Hi,
In first version of OS Property, i added the coupon feature for component. But it had several potential errors, and we thought the Coupon feature wasn't important, specially, when we integrated OS Property with OS Membership, administrator can use the coupon feature of membership component. So we decided to disable "Coupon feature". We haven't removed it out of OS Property installation package because maybe in future, we'll add new features into OS Property that need "Coupon" feature.
Thanks
Dam