I need to change the cancellation policy from strict to moderate for a guest who has already booked

[Ricardo66]

I need to change the cancellation policy from strict to moderate for a guest who has already booked. The fact is, when I change it in my preferences page, it doesn't apply to the already booked reservations. How I do that?

[Cynthia-and-Chris1]

This is not possible.  The policy you had at the time of booking is the policy that will stick.