Administrators are assigned members who have the ability to edit and manage the community. Each community owner can assign administrators for their community.
Administrators: These are assigned members who has the ability to edit and manage the community settings.
Campaign Group Administrators: They are the assigned administrators for a campaign groups. These administrators will have access to all the campaigns in the particular campaign group and will be able to edit and manage those campaigns.
Campaign Administrators: They are the assigned administrators who would be able to access, edit and manage only to the campaign they are assigned too.