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

# Link Contacts

> Learn how WhatsApp and Bitrix contacts are automatically linked through phone numbers for seamless chat backup and CRM synchronization.

WhatsApp and Bitrix contacts are linked automatically through the unique phone number added in the Bitrix **Phone Number** or **Mobile** field. You can also create a new contact directly from WhatsApp using Eazybe, or link an existing contact to a phone number in WhatsApp.

## How Contact Linking Works

<Steps>
  <Step title="Automatic Linking via Phone Number">
    When you create a new Bitrix contact through the Eazybe WhatsApp extension, the contact is **automatically linked** to Bitrix using the phone number as the unique identifier.
  </Step>

  <Step title="Chat Backup Activation">
    Once linked, your WhatsApp chats with that contact are **backed up to Bitrix every 3 minutes**, ensuring real-time sync and data accuracy.
  </Step>

  <Step title="Sync Status Tracking">
    The **last sync time** for each contact is updated in the Eazybe workspace, providing an up-to-date view of your conversation backup status.
  </Step>
</Steps>

## What Gets Synced

Once linked, the **Contact Card** of the respective contact appears in Eazybe's mini-CRM view. The following data is backed up to Bitrix:

<CardGroup cols={2}>
  <Card title="1:1 Chats" icon="message">
    All individual WhatsApp conversations with the linked contact
  </Card>

  <Card title="Group Chats" icon="users">
    Group chats associated with the contact are also backed up
  </Card>
</CardGroup>

The backed-up chats are visible on the **Contact's page** in Bitrix.

<Note>
  Both individual and group chats associated with the contact will be backed up and visible in the Bitrix Contact's page.
</Note>

<img src="https://mintcdn.com/eazybe/_SHTxoFtEoN7e4t3/images/1204583314.png?fit=max&auto=format&n=_SHTxoFtEoN7e4t3&q=85&s=be657d52ef29cc6465a872883f55587a" alt="Chat backup in Bitrix Contact page" width="1789" height="857" data-path="images/1204583314.png" />

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If you have any questions or need further assistance, feel free to reach out to us at **[hey@eazybe.com](mailto:hey@eazybe.com)**.