> ## Documentation Index
> Fetch the complete documentation index at: https://docs.wavix.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Set up and configure a 2FA service

> A step-by-step guide to creating and managing 2FA services in the Wavix portal.

Before you can send authentication codes, you must create a **2FA Service**. This service stores your configuration, such as delivery channels and password length.

## Prerequisites

Before creating a service, ensure you have:

* A [Wavix account](https://wavix.com/sign-up).
* Your [API key](/api-reference/authentication#get-your-api-key).

## How to create a 2FA service

Follow these steps to configure your 2FA service in the Wavix portal:

<Steps>
  <Step title="Access 2FA Settings">
    1. Go to **Solutions** → **2FA**.
    2. Select **Create new**.
  </Step>

  <Step title="Configure Service Details">
    **Service details**\
    Enter a name and code length. The service name appears in messages so users recognize your brand. We recommend enabling **Validate phone numbers** to verify destination numbers before codes are sent.

    **Delivery channels**\
    Enable **SMS**, **Voice**, or both. For SMS, you can use a **Shared Sender ID** for instant setup or a **Dedicated Sender ID** (requires per-country registration). You can also enable **Fallback to Voice** for improved delivery.

    If using Voice, select a **Caller ID** from your account.

    Select **Next**.
  </Step>

  <Step title="Review and Save">
    1. Review settings on the **Summary** page.
    2. Select **Save and close** or **Save and preview** to test the service immediately.
  </Step>
</Steps>

<Info>
  To fallback to voice calls when SMS delivery fails, you must enable **Channel failover** and select **Voice** as a delivery channel.
</Info>

<img src="https://mintcdn.com/wavix/9Qqy1tg03dd46iXK/messaging/images/2fa/2fa-create-service.png?fit=max&auto=format&n=9Qqy1tg03dd46iXK&q=85&s=f2bf6625a0156811b67d6442f3417601" alt="2FA Service creation screenshot" title="2FA Service creation" style={{ width:"50%" }} className="mx-auto" width="1182" height="2230" data-path="messaging/images/2fa/2fa-create-service.png" />

Once created, you can copy the **Service ID** from the list of services. You'll need this ID to send and verify OTPs in your [API implementation](/messaging/2fa-integration).