A guest space is a space that non-kintone users can join as guests. The space can be used to communicate with external members in collaborative projects.
In guest spaces, you can send invitation e-mail to guests. The invited guests can access kintone from the invitation e-mail to create a guest account.
A guest can access the invited space and the apps that belong to the space. The guest cannot view other data. For actions available for guests in guest spaces, see the following page:
Actions Available to Users in Space