Page roles are the permission levels Meta Business Manager assigns on a Facebook Page, such as admin, editor, moderator, advertiser or analyst, so a teammate or agency partner gets exactly the access they need without ever seeing the account password.
A Page role is a named permission level inside Meta Business Manager: admin (full control, including who else has access), editor (can post and respond as the Page), moderator (can respond to comments and messages but not post), advertiser (can create ads and view insights) and analyst (view-only access to performance data). A Page owner or admin assigns a role to a person or, through partner access, to an entire agency.
Roles are revoked the same way they're granted, from Business Settings, with no password ever changing hands. This is the mechanism Meta One's business tiers layer team seats and Business Agent capacity on top of; it doesn't replace it.
Page roles are the actual answer to credential sharing. An agency that never learns to use them defaults to trading real passwords over Slack or email, which survives long after a contract ends and violates Meta's terms of service. Roles fail safely: revoke one and access stops immediately, without anyone needing to change a password the agency never should have had.