> For the complete documentation index, see [llms.txt](https://help.3sigmacrm.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.3sigmacrm.com/common-issues/changing-the-default-whatsapp-app-for-messaging.md).

# Changing the Default WhatsApp App for Messaging

3sigma CRM makes it easy to connect with leads over WhatsApp. If you have both **WhatsApp Personal** and **WhatsApp Business** installed on your phone and want to switch which app 3sigma CRM uses to send messages, follow these steps.

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### 1. Reset WhatsApp Defaults

To change the app used for sending messages:

1. Open your device’s **Settings**.
2. Navigate to **Apps** > **Default Apps** > **Opening Links**.
3. Select **WhatsApp** and tap **Clear Defaults**.

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### 2. Send a Message via 3sigma CRM

Once the defaults are cleared:

1. Open 3sigma CRM.
2. Go to a Lead’s details and tap the WhatsApp icon to send a message.
3. Your phone will prompt you to select either **WhatsApp Personal** or **WhatsApp Business**. Choose the app you prefer.

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### 3. Understand Default App Behavior

* The app you select will become the **default choice** for future WhatsApp links.
* If you want to switch to a different WhatsApp app later, repeat the steps to reset the defaults.

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By following these steps, you can easily switch between WhatsApp Personal and WhatsApp Business to suit your preferences while using 3sigma CRM.