# Phone Number Input

The Phone Number Input module collects a user's phone number and can confirm phone ownership by sending a one-time password (OTP) via SMS.

For an overview of this module and how it works, see [Phone Number Input](https://developer.incode.com/docs/phone-number-input).

## Supported with:

:white_check_mark: Workflows | :white_check_mark: Flows

## Add Phone Number Input to Workflows

1. In the left menu. Select **Flow Builder** > **Workflows**.
2. Click **New** or select an existing Workflow.
3. From the Modules list, drag and drop the **Phone Number Input** module into the builder.
4. You can click the three dots > **Edit** on the module node to open the [Configuration Options](#configuration-options) panel and adjust settings as needed.

## Add Phone Number Input to Flows

1. In the left menu. Select **Flow Builder** > **Flows**.
2. Click **New** or select an existing Flow.
3. On the **Select Modules** tab, find the **Phone Number Input** module and click **Add**.
4. You can click **Details & Configurations** to open the [Configuration Options](#configuration-options) panel and adjust settings as needed.

## Configuration Options

After making changes, click **Save Configurations** to apply them.

<Accordion title="View image of Workflow configuration panel">
  ![Image of the Phone Number Input configuration panel in Workflows. Has four configuration options.](https://files.readme.io/a9617a0e3d6075561bb6940d95a3d7619bccc02e01358869bfaf28d4a8c20d28-image.png)
</Accordion>

<Accordion title="View image of Flow configuration panel">
  ![Image of the Phone Number Input configuration panel in Flows. Has four configuration options.](https://files.readme.io/9038f84ff4f168aff71636a501a1ed57c3a98754b0c35462fe939579813b0450-image.png)
</Accordion>

| Setting                                                          | Description                                                                                                                                                                                                                 |
| ---------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **Enable OTP verification**                                      | The user must confirm their phone number by entering a one-time password (OTP) sent via SMS before the module completes.                                                                                                    |
| **Expiration duration for OTP (min)**                            | The number of minutes an OTP remains valid after it is sent. Default: _10_.                                                                                                                                                 |
| **Enable SNA verification**<br />_Flows only_                    | Activates [Silent Network Authentication](https://developer.incode.com/docs/silent-network-authentication) as the primary verification method, with SMS OTP as an automatic fallback when SNA is unavailable. |
| **Prefill phone number**                                         | Pre-populates the phone number field with a number already associated with the Session. Allows the user to review or edit it before continuing.                                                                             |
| **Skip if phone number already collected**<br />_Workflows only_ | Skips this module if a phone number has already been collected in the Session. {/* TODO: Confirm with PM — confirm exact skip behavior and whether the previously collected number is passed through */}                    |

<br />