+1
Completed
SAML / OAUTH2 / SSO Login
Enable the Single Sign On, with OAuth2 in Google...
Yes, I understand that we can setup at: Setup > Authentication > Mail servers
But I believe that these is a friendly, easy, and secure way to authenticate.
Customer support service by UserEcho
See https://glpi.userecho.com/communities/1/topics/10-enable-multiple-autentication