docs/data/reusables/enterprise_user_management/external_auth_disables_2fa.md

When using SAML or CAS, two-factor authentication is not supported or managed on the {% data variables.product.prodname_ghe_server %} instance, but may be supported by the external authentication provider. Two-factor authentication enforcement on organizations is not available. For more information about enforcing two-factor authentication on organizations, see "AUTOTITLE."