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

# Sync Audiences

To sync your audiences to external CRMs for targeted campaigns and customer engagement, MX supports integrations with [Blueshift](https://blueshift.com/). Once configured, audiences sync daily to your selected platform.

The audience list contains the `external_guid` or CIF field value you assigned (not MX-generated) when creating users in the system.

<Info>
  **TIMING**

  It may take 30 minutes or more for the data to populate in your CRM.
</Info>

## Blueshift

<Note>
  **PREREQUISITE**

  You'll need your **User API Key** from Blueshift.
</Note>

To set up audience syncing in Blueshift:

1. Navigate to the **Integrations** tab in MX Intelligence and select **Connect** on the Blueshift component.
2. Authenticate using your **User API Key** from your settings in Blueshift.
3. Once authenticated, navigate to any audience and export it by clicking the three-dot menu on its table record and selecting **Export**.
4. The Blueshift option will appear in the Export menu. Confirm this selection and select **Export**.

Although the customer list associated with the audience appears in the **Data** > **Customer** section of Blueshift immediately, it takes about 30 minutes for the `user_count` field to populate.