@larissa don't think there is an option to do that. reported as an issue on githubpichalite created this issue in NodeBB/NodeBB closed add ability to remove user registration invitations #4254
Admin invite only
I'm having problem with registration setting for admin invite only.
When I send an invitation email to user, user click on the link will see this
How can I fix the above error?
I followed the setting from here and got it fixed https://community.nodebb.org/topic/6525/invited-future-users-can-t-register/5