> For the complete documentation index, see [llms.txt](https://authenticator.hideez.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://authenticator.hideez.com/user-guide/ios-guide/login-with-hideez-authenticator/sso-login.md).

# SSO login

{% hint style="info" %}
**The application also supports multi-accounts, allowing you to add multiple accounts for users registered on the Hideez Enterprise Server within a single domain, as well as accounts from different Hideez servers in various domains. This is particularly convenient if you have multiple Hideez servers or multiple accounts on one server.**
{% endhint %}

To use this option please first [enroll the application on HES](/user-guide/ios-guide/software-key-enrollment/sso-enrollment.md).

And then if your administrator enabled passwordless login, please, follow [this](/user-guide/ios-guide/login-with-hideez-authenticator/sso-login/sso-passwordless-login.md) guide. If you will use Hideez Authenticator as a second factor, please, follow [this](/user-guide/ios-guide/login-with-hideez-authenticator/sso-login/sso-login-as-a-second-factor.md) guide.