@Jacqueline1395
It should not affect any bookings you already have...only a future booking. This is why you should turn OFF Instant Book (which I assume you already have) while you are doing this:
- Turn OFF Instant Book
- Change your default stay settings as indicated
- Double check the dates are open on your calendar
- Either you or your guest can then change the check-out date using the alteration/change reservation feature. Only change the check-out date on the alteration page; not the check-in date.
Advise guest ahead of time you are doing this so they can either send you a request to accept, or you can send them a request to accept right away.
After you are done, return your default settings to what you had prior. Turn Instant Book back on (if you are using it) only AFTER this has all been accomplished. BTW, if you are doing long-term stays it's probably best NOT to use Instant Book.