Only admins are able to change the registration to "public" or "invitation". Registration with invitation means only people who receive an invitation email are able to use their email address to register in your community.
1. Follow the steps below to change the registration policy:
2. How to add an email to the invitation list:
Admin Panel> Members> Invitation> Insert email address and name> Add another or many at once> Change the role of the invited person in community> Customize your invitation email if you want> Invite Members.
3. How to check the status of and revoke an invitation:
Click on the "Invited Users" from the top menu to see the list and the status of the sent invitations. You can also revoke the invitations from here: