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

# Syncing segments with RudderStack Audiences

<View title="Developer" />

<View title="Federal docs">
  <Danger>
    **Syncing segments is not available in federal environments**

    To learn more, read <a href="/docs/home/infrastructure/federal">LaunchDarkly in federal environments</a>.
  </Danger>
</View>

<View title="EU docs">
  <Danger>
    **Syncing segments is not available in LaunchDarkly's European Union (EU) instance**

    To learn more, read <a href="/docs/home/infrastructure/eu">LaunchDarkly in the European Union (EU)</a>.
  </Danger>
</View>

This topic links to RudderStack's documentation for its LaunchDarkly integration.

RudderStack is an open source Customer Data Platform (CDP), providing data pipelines that allow you to easily collect data from every application, website, and SaaS platform to activate in your warehouse and business tools.

You can use this integration to sync audiences defined in your warehouse with LaunchDarkly.

RudderStack manages this integration. To learn how to use it, read RudderStack's [LaunchDarkly Segments](https://www.rudderstack.com/docs/destinations/audience-list-destinations/launchdarkly-segments/).

To learn more about synced segments in LaunchDarkly, read [Synced segments](/docs/home/flags/synced-segments).

<Info>
  **A RudderStack integration is also available**

  You can also send your event data from RudderStack to LaunchDarkly. To learn more, read [RudderStack](/docs/integrations/rudderstack).
</Info>