Your team and what each role can do
Owner, admin and moderator — what each rung reaches, and how to invite somebody at the right one.
Members in your workspace is your team: the people with a seat and a rung. Everyone who votes and posts on your boards is your audience instead, and lives on People.
Paid plans have unlimited seats. On the free plan there is one, so inviting anybody means upgrading first.
The three rungs
Owner — everything, including billing, deleting the workspace, and the rungs above. One per workspace, and it moves with the workspace rather than from this screen.
Admin — everything the owner can do except billing and deleting the workspace. Boards, statuses, categories, the changelog, theming, your domain, integrations, inviting people and changing their rung.
Moderator — the queue. Triage, changing a post's status, commenting, pinning, marking spam, and reading Members and People. No settings of any kind: no statuses, no categories, no changelog, no theming, no integrations, no billing, no new boards.
Moderator is the rung for somebody who works your feedback every day and should not be able to rename your workflow while doing it.
Member is a different thing entirely and not a seat. It is the audience of a private board — somebody admitted to read and post there. See boards and categories.
Inviting somebody
Press Invite, type their address, and pick the rung. They get an email with a link; no password is involved, here or anywhere.
An invitation that has not been accepted can be revoked or resent from its row.
Changing a rung
Each seat other than the owner's carries a dropdown. Pick the new rung and it saves — there is no Save button, because one field on one row does not need one.
What a moderator sees
A moderator's sidebar is the feedback half only. If they type a settings address directly they get a screen saying that part is for admins and naming what they can do, rather than being bounced to the dashboard — a redirect reads as a broken link and gets reported as one.
The refusal is enforced where the change is written, not by hiding the button, so a rung that cannot do something cannot do it from anywhere.