> For the complete documentation index, see [llms.txt](https://ztrust.gitbook.io/ztrust-documentation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://ztrust.gitbook.io/ztrust-documentation/user-manual-ztrust-v4.1/4.-admin-manual/4.13-set-up-multi-factor-authentication/4.13.3-otp-based-registration.md).

# 4.13.3 OTP Based Registration

*"A One-Time Password (OTP) is a unique, temporary code that a user receives via SMS/email to authenticate a login or transaction. Unlike traditional static passwords, which remain the same until changed, an OTP is valid for a single session or transaction."*

To set up OTP Based Registration feature, do the following steps -

1. Click on **Authentication** in the sidebar.<br>

   <figure><img src="/files/9xrNsO3gZTMMAWeIeMIg" alt=""><figcaption><p>Fig. 4.12.3.a: Navingating to Authentication section</p></figcaption></figure>

2. Click on the **Required Actions** tab.<br>

   <figure><img src="/files/0vlES0bAmCVZNG7VwL0P" alt=""><figcaption><p>Fig 4.12.3.b: Navigating to Required Actions</p></figcaption></figure>

3. Turn on the toggle switch under both **Enabled** and **Set as Default Action** for **Register through OTP**.<br>

   <figure><img src="/files/XMLf7X8FaIPvBxvOwQpi" alt=""><figcaption><p>Fig 4.12.3.c: Turning on 'Register through OTP'</p></figcaption></figure>

**OTP based registration** is now enabled.