# Reverse ETL

Reverse ETL (Extract, Transform, Load) extracts data from a warehouse using a query you provide and syncs this warehouse data to your third party destinations.

Use Reverse ETL when you want to:

* **Elevate marketing campaigns**: Sync audiences and other data built in the warehouse to multi-channel marketing tools, like Braze, Hubspot, or Salesforce Marketing Cloud, to personalize marketing campaigns.
* **Enrich your customer profiles**: Sync enriched data to destinations like Mixpanel for a more complete view of the customer, or enrich Segment Profiles with data from your warehouse.
* **Activate data in Twilio Engage**: Send data in the warehouse back into Segment as events that can be activated in all supported destinations, including Twilio Engage destinations.
* **Strengthen your conversion events**: Pass offline or enriched data to conversion APIs like Facebook, Google Ads, TikTok, or Snapchat.
* **Make warehouse data accessible to business teams**: Connect destinations like Google Sheets to a view in the warehouse to allow business teams to access up-to-date reports.

> \[!NOTE]
>
> Event and object data includes customer profile data, subscriptions, product tables, shopping cart tables, and more.

## Get started with Reverse ETL

[Set up Reverse ETL](/docs/segment/connections/reverse-etl/setup)

Set up the infrastructure you need to sync data from your warehouse to your downstream destinations.

[Manage Reverse ETL Syncs](/docs/segment/connections/reverse-etl/manage-retl)

View your sync history, reset your syncs, or subscribe to alerts.

## Learn more

Learn more about the system that powers Reverse ETL, supported destinations, and frequently asked questions.

[Reverse ETL System](/docs/segment/connections/reverse-etl/system)

Reference material about system limits and how Segment detects data changes.

[Destination catalog](/docs/segment/connections/reverse-etl/reverse-etl-catalog)

View the destinations you can connect to your Reverse ETL sources.

[Reverse ETL FAQ](/docs/segment/connections/reverse-etl/faq)

Frequently asked questions about Reverse ETL.

## More Reverse ETL resources

[Activate Data with API-managed Reverse ETL](https://www.twilio.com/en-us/blog/activate-data-with-api-managed-reverse-etl)

In this blog from Segment, learn how Reverse ETL helps businesses activate their data to drive better decision-making and greater operational efficiency.

[Customer story: MongoDB](https://segment.com/customers/mongodb/)

Learn how MongoDB used Reverse ETL to connect the work of analytics teams to downstream marketing and sales tools to deliver just-in-time communications that increased customer satisfaction and engagement.