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

# WhatsApp Messaging

> Send messages, manage conversations, and engage customers on WhatsApp Business via Vobiz - message types, the 24-hour window, and template basics.

## Getting Started

New to WhatsApp messaging? Start with our inbox guide to learn the basics of sending and receiving messages.

[Using the Inbox →](/whatsapp/messaging/inbox)

## Message Types

WhatsApp supports a rich set of message formats for different conversational needs:

* **Text** - Plain text messages, up to 4,096 characters with optional URL previews.
* **Media** - Images, videos, audio, and documents with optional captions.
* **Template** - Meta-approved pre-formatted messages used outside the 24-hour window.
* **Interactive** - Buttons, lists, and quick replies for structured user input.
* **Location** - Geographic coordinates with optional name and address.
* **Contacts** - Shareable contact cards (vCard).

## Messaging Features

### Unified Inbox

Manage all WhatsApp conversations from a single interface. View message history, customer information, and conversation context in one place.

[Learn more about the Inbox →](/whatsapp/messaging/inbox)

### Message Templates

Create and manage Meta-approved message templates for business-initiated conversations. Templates support variables, buttons, and multiple languages.

[Learn about Templates →](/whatsapp/messaging/templates)

### Real-time Delivery Status

Track message delivery with real-time status updates:

* **Queued** - Message queued for sending.
* **Sent** - Delivered to WhatsApp servers.
* **Delivered** - Received by customer's device.
* **Read** - Opened by customer.
* **Failed** - Delivery failed (see error).

### Rich Media Support

**Supported formats**

* Images: JPEG, PNG (max 5MB)
* Videos: MP4, 3GP (max 16MB)
* Audio: AAC, MP3, OGG (max 16MB)
* Documents: PDF, DOC, XLS, etc. (max 100MB)

**Features**

* Caption support for media
* Automatic thumbnail generation
* Media URL hosting
* Preview in conversations

## 24-Hour Messaging Window

WhatsApp enforces a 24-hour messaging window to ensure businesses only send relevant messages:

### Within 24 Hours

When a customer messages you, you have 24 hours to respond with **any type of message**:

* Free-form text messages
* Media and documents
* Interactive messages
* Multiple messages allowed
* No templates required

### After 24 Hours

Once 24 hours pass, you can **only send pre-approved templates**:

* Template messages only
* Must be Meta-approved
* Conversation charges apply
* Starts new 24-hour window
* No free-form messages

### How It Works

1. Customer sends you a message → 24-hour window opens
2. You can respond freely with any message type for 24 hours
3. Each message from the customer resets the 24-hour timer
4. After 24 hours of silence, only templates can be sent
5. Sending a template opens a new 24-hour window

## Messaging Best Practices

* **Respond quickly** - Aim to respond to customer messages within 5 minutes during business hours. Fast responses improve customer satisfaction and maintain high quality ratings.
* **Personalize messages** - Use customer names and reference previous interactions. Personalized messages have higher engagement rates and reduce block/report incidents.
* **Keep messages concise** - While you can send up to 4,096 characters, shorter messages (under 500 characters) are easier to read on mobile devices and get better response rates.
* **Use rich media wisely** - Images and videos increase engagement but consume data. Optimize file sizes and only send media when it adds value to the conversation.
* **Avoid over-messaging** - Don't send multiple messages when one would suffice. Excessive messaging can lead to customer blocking and reduced quality ratings.
* **Respect opt-outs** - Immediately stop messaging customers who opt out or request to stop receiving messages. Maintain an opt-out list and respect customer preferences.
* **Never send spam** - Don't send unsolicited promotional messages, chain messages, or content unrelated to your business. This violates WhatsApp policies and can result in number suspension.

## Explore Messaging Features

* [Using the Inbox →](/whatsapp/messaging/inbox)
* [Creating Templates →](/whatsapp/messaging/templates)
* [Send Message API →](/whatsapp/api/send-message)
* [Webhooks Documentation →](/whatsapp/webhooks)