Changing login scheme from user/pass to `Log In with Google` for existing users

As an existing Forest user, how can I switch from user/password login to Log in with Google?

When I try to Log in with Google, I get the following message:
Please use your email and password to access your <My EMAIL> account.

Hi @Tsachi,

Moving from user/password to Google SSO can be done only on our end. I’ve just contacted you by email to help you with this.

Thanks

Thank you Louis for handling this!
I would like to migrate all our users to Google SSO, who can assist?