Invite staff and set roles
Give helpers only the access they need.
Settings › Staff › Invite sends an email with a link to set a password. Roles: Admin (everything except billing, staff, domains), Manager (products, orders, customers, content), Fulfilment (orders and status only), Support (orders read-only, inbox, customers), Viewer (read-only).
Suspending or changing a role signs that person out immediately. Seats depend on your plan.