Lifetime Membership?

I am unable to set my subscriptions to Lifetime Membership.
I can turn it on, but when I save it, the option turns off.

I want people who sign up for a 6 month gym membership (billed monthly)to continue to be billed after the 6 months are up.

Hi

I guess you are having recurring subscription plan? If so, you do not need it to be Lifetime. For recurring subscription, subscription will continue being renewed until admin/subscribers cancel the subscription, so you do not have to worry about it

Tuan