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

# Liftoff

> Empower your marketing team to run advertising on Liftoff

## Overview

[Liftoff](https://liftoff.io/) is a mobile app marketing platform that helps companies acquire and retain high-quality app users at scale. Hightouch's Liftoff destination allows you to sync audiences to Liftoff for ad targeting.

## Supported Syncing

| Type | Description | Supported Sync Modes | API Reference |
| - | - | - | - |
| **Audiences** | Sync audiences from any source to Liftoff. | Add and Remove | Not applicable |

For more information about sync modes, refer to the [sync modes](https://docs.hightouch.com/syncs/types-and-modes.md#sync-modes) docs.

## Connect to Liftoff

Go to the [**Destinations** overview page](https://app.hightouch.com/destinations?from=docs) and click the **Add destination** button. Select **Liftoff** and click **Continue**. You can then authenticate Hightouch to **Liftoff**.

You need to enter the following required fields:

* **API key**: Ask your Customer Support Representative at Liftoff for your API key.

## Sync Configuration

Once you've set up your **Liftoff** destination and have a [model](https://docs.hightouch.com/getting-started/concepts.md#models) to pull data from, you can set up your sync configuration to begin syncing data. Go to the [**Syncs** overview page](https://app.hightouch.com/syncs?from=docs) and click the **Add sync** button to begin. Then, select the relevant model and the Liftoff destination you want to sync to.

This integration supports syncing audiences.

### Record Matching

You can match rows from your model to users in Liftoff on their **Device ID**. Refer to the [record matching docs](https://docs.hightouch.com/syncs/record-matching.md) for more information.

### Delete Behavior

The [delete behavior](https://docs.hightouch.com/syncs/overview.md#delete-behavior) you select dictates what to do when a row no longer appears in your model's query results. You have the following options:

| Behavior | Description |
| - | - |
| **Do nothing** | Keep the user in the Liftoff audience. |
| **Remove from audience** | Remove the user from the Liftoff audience. |

## Tips and troubleshooting

To see the exact API requests and responses from each sync run, use the [live debugger](https://docs.hightouch.com/syncs/debugger.md). To get notified by Slack, PagerDuty, SMS, or email when a sync fails, set up [sync alerts](https://docs.hightouch.com/syncs/alerting.md). If you run into an issue this page doesn't cover, [contact support](#pylon-chat).