---
title: "Message (WhatsApp)"
slug: "message-whatsapp"
description: "The Message node allows you to send automated WhatsApp messages to inbound digital channel interactions."
updated: 2025-09-23T15:43:55Z
published: 2025-09-23T15:43:55Z
canonical: "docs.voiso.com/message-whatsapp"
---

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

# Message (WhatsApp)

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The **Message** node allows you to send automated WhatsApp messages to inbound digital channel interactions.

## Introduction
Use the **Message** node to send automated WhatsApp messages to contacts during an inbound [digital channels](/v1/docs/digital-channels) flow. You can specify that the node must wait for the contact to respond before moving to the next node. You can also set a timer to automatically progress to the next node if the contact does not respond.

### Connections
The **Message** node supports unlimited input connections and up to 5 output connections, three for buttons, plus one connection for the [contact response](/v1/docs/message#contact-response) and one for the [next step](/v1/docs/message#next-step).

## Using the Message node

Refer to the main [Message](/v1/docs/message) node article for general information about how to use the **Message** node. This article focuses on elements that are specific to sending WhatsApp messages.

The **Message** node allows an unlimited number of input connections and up to two output connections. If you add buttons to the node, an additional 3 connections are supported, one for each button.

To make an input connection, drag a link to the **Message** node from any node supporting an output connection. To make an output connection, drag a link from the **Message** node to any node supporting an input connection.

![Flow Builder Digital Message Node WhatsApp Making Connections](https://cdn.document360.io/44ae307a-3737-4fbf-98e0-9b888deb90dc/Images/Documentation/Flow%20Builder%20Digital%20Message%20Node%20WhatsApp%20Making%20Connections.png){height="" width=""}

By default, only the **Next step** connection is required. The other connections are added if you request a contact response or set a timeout (refer to the main [Message](/v1/docs/message) article).

### Buttons

Buttons act like an IVR for digital interactions. You can add buttons to the message that allows contacts to choose a limited number of options that you define.

Additional output connections are added for each button that you include in the message. You can use button clicks in the message to route the interaction. For example, for a travel agency, you could provide a list of destinations that a contact may choose from.

## Configuring the Message node
Follow the steps in main [Message](/v1/docs/message) article to configure a **Message** node in your interaction flow.

The **Message** node for WhatsApp flows includes these additional options:

* [Files](/v1/docs/message-whatsapp#files)
* [Buttons](/v1/docs/message-whatsapp#buttons1)

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### Files

{{variable.BrandName}} supports sending various types of files through the WhatsApp message, enabling seamless content sharing with contacts.

Click **Browse** to add a file or drag and drop a file onto the configuration panel.

![Flow Builder Message Node WhatsApp Files](https://cdn.document360.io/44ae307a-3737-4fbf-98e0-9b888deb90dc/Images/Documentation/Flow%20Builder%20Message%20Node%20WhatsApp%20Files.png){height="" width=""}

The following file formats are supported:

* **Images:** PNG, JPG, JPEG, GIF
* **Documents:** PDF, DOC, DOCX, XLS, XLSX, PPT, PPTX, TXT
* **Audio:** MP3, WAV, M4A, OGG
* **Video:** MP4, MOV, AVI

#### File size limits

* **Images:** Maximum file size of **50 MB**
* **Other formats:** Maximum file size of **20 MB**

### Buttons

Buttons provide an interactive way for contacts to take specific actions directly from a WhatsApp message. Buttons display within the message text. This feature simplifies engagement by letting contacts respond quickly or navigate to useful resources.

Buttons may include text, emojis, and variables.

Click **Add button** to add a button.

![Flow Builder Message Node WhatsApp Buttons](https://cdn.document360.io/44ae307a-3737-4fbf-98e0-9b888deb90dc/Images/Documentation/Flow%20Builder%20Message%20Node%20WhatsApp%20Buttons.png){height="" width=""}