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

# Overview

> Send and receive WhatsApp, iMessage, and SMS messages right inside CRM.

## What is Message provider?

Message provider turns CRM into a multi-channel messaging powerhouse. Connect your own
**WhatsApp**, **iMessage**, and **SMS** numbers and send or receive messages directly
from the CRM Conversations tab, with no Meta template approvals, no per-message fees, and no
leaving your CRM.

Mix and match channels, automate replies through CRM workflows, and manage everything
across sub-accounts from a single white-labeled dashboard.

## Connect a channel

Choose the messaging channel you want to set up. You can run one or all of them side by side.

<Columns cols={3}>
  <Card title="WhatsApp Setup" icon="whatsapp" href="/whatsapp/full-setup">
    Complete step-by-step instructions to connect your WhatsApp number with CRM.
  </Card>

  <Card title="iMessage Setup" icon="comment" href="/imessage/getting-started">
    Connect your iPhone and Mac to send and receive iMessages through CRM.
  </Card>

  <Card title="SMS Setup" icon="message-sms" href="/sms/setup-sms">
    Turn your Android phone into an SMS gateway and text right inside your CRM.
  </Card>
</Columns>

## Go further

<Columns cols={2}>
  <Card title="Custom Providers" icon="shuffle" href="/getting-started/custom-providers">
    Use WhatsApp QR, SMS, and iMessage as channels inside CRM, switching providers
    per message from one unified inbox.
  </Card>

  <Card title="Multiple Messaging Instances" icon="layer-group" href="/multiple-instances/overview">
    Manage multiple numbers and learn how the system intelligently picks which number
    to use for each message.
  </Card>
</Columns>