For GitHub this marks the installation disconnected (a tombstone status, not
a physical delete); repositories stop syncing. Org-scoped and idempotent: a
connector this org does not own returns 404, and a second disconnect of an
owned connector still succeeds. Reconnect by beginning the connect flow
again.
This route requires the write scope.A missing or invalid credential returns 401 authentication_error. A valid credential without the scope returns 403 permission_denied, and the problem body names the exact scope required.