Staff & seats
Staff accounts, their statuses, and how seats are counted.
The Staff page is your team's directory — who can sign in, which stores they work in, and what roles they hold.
Who can do this: any staff member whose role includes Manage Staff can view the list (a store-scoped viewer sees only colleagues in their own stores). Inviting someone and switching an account on or off are the Administrator's alone; see The Administrator.

A staff member occupies one seat from your plan's allotment (plus any bought seats). The mechanics live on Seats & add-ons; the three facts that matter here:
Each row's menu offers Edit, Resend invite / Cancel invite (on pending rows), Disable account / Enable account, Send password reset, and Delete staff.
Two of them deserve their dialogs read closely: