How to set subscription expiry in v11?

I am trying out the subscription feature in v11.
I have a simple requirement, customer signs a yearly contract agreeing to pay an amount every month for the next 12 months.
After 12 months the subscription should expire and invoices should not be further generated unless the subscription in restarted.
According to the documentation, I am supposed to set the start date, and days until due is the validity of the subscription, but days until due is actually number of days of the Invoice Due Date from the Invoice generation date.
I can’t seen to find the subscription expiry field anywhere, am I missing something here?

As far as I know, this is not a feature currently built into ERPNext Subscriptions.

Also, I have never been able to get subscriptions to function properly. There are several fundamental flaws.