Time limited authentication

---
title: Time limited authentication
description: Support time limited authentication for your ServiceNow instance.
locale: en-US
canonical_url: https://www.servicenow.com/docs/r/australia/platform-security/authentication/explore-tla.html
release: australia
product: Authentication
classification: authentication
topic_type: concept
last_updated: "2026-09-10"
reading_time_minutes: 1
breadcrumb: [Time limited authentication, Token based authentication \(user logins\), Authentication, Access Management]
---

# Time limited authentication

Support time limited authentication for your ServiceNow instance.

**Note:** Time limited authentication is specific to the ServiceNow instance. Customized links for users can only be created within ServiceNow.

Admins can configure link based authentication on the ServiceNow instance. The configured link can be shared with the user through Email or SMS and user can use those links to log in to the instance.

Login to instance with this authentication scheme is controlled through Adaptive Authentication policies configured on the ServiceNow instance.

Time based authentication enables you to perform the following:

-   Admin can configure link based auth to use it within an expiry time.
-   Application team can fetch nonce to be used with link for the specific configuration item using exposed scriptable API. Link generation will be taken care of by Application team.
-   Application team can generate the link and send to the user through an existing channel.
-   User with the link can log in to instance one time and within expiry time specified as part of configuration.
-   Admins can configure the low privileged roles for the authentication scheme.
-   Admins can enforce MFA for the authentication scheme as a second factor for authentication with the TLA link.