With the private setting, the guestbook is only visible through a separate link. The guestbook does not appear through the button in the invitation, but it can still be viewed by anyone who has the direct guestbook link.
This setting is useful when you want to share the guestbook with a smaller group, such as family members, partners, or close relatives.

When a private guestbook is useful
A private guestbook can be helpful when you want to collect personal messages without showing them immediately to all invited guests. By sharing the separate link only with this group, the guestbook remains more personal and easier to manage.
How guests open the private guestbook
Guests open the private guestbook through the direct guestbook link. Once they open this link, they can view the messages and add their own message.
Posting messages remains possible as long as the guestbook is active.
Please note: anyone with the guestbook link can view the messages. Only share the link with people for whom the guestbook is intended.