> For the complete documentation index, see [llms.txt](https://enterprise.hideez.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://enterprise.hideez.com/hideez-enterprise-server/employees/edit-employee/activate-or-reactivate-the-single-sign-on-sso-feature.md).

# Activate or reactivate the Single Sign-On (SSO) feature

### An HES administrator can activate or reactivate a user's SSO connection, or initiate an update to a user's SSO authentication configuration, from the 'Employees' menu in the left panel of the HES Administrator Console.

User SSO can be activated or reactivated in the following way:

* Send or resend the activation email – the user will receive a new email at their personal address containing a unique link.
* Alternatively, the invitation link can be copied and sent to the user through any preferred and secure method, such as a messaging app
* The activation QR code can also be shared as an image via any trusted and secure communication channel. Using a QR code, a user can easily configure their Hideez Authenticator.

{% hint style="info" %}
Regardless of the chosen method, the link will remain valid for 24 hours and will allow the user to change or update their authentication method in HES. The QR code will remain valid until device registration is complete.
{% endhint %}

<figure><img src="/files/LGhIgQf9aPEPET43PuCc" alt=""><figcaption><p>Activating or reactivating user SSO</p></figcaption></figure>