---
title: "Unleash"
description: "Learn about Sentry's Unleash integrations."
url: https://docs.sentry.io/organization/integrations/feature-flag/unleash/
---

# Unleash

## [Evaluation Tracking](https://docs.sentry.io/organization/integrations/feature-flag/unleash.md#evaluation-tracking)

Sentry can track flag evaluations as they happen within your application. Flag evaluations will appear in the "Feature Flag" section of the Issue Details page as a table, with "suspect" flag predictions highlighted in yellow. Learn more about how to interact with feature flag insights within the Sentry UI by reading the [Issue Details page documentation](https://docs.sentry.io/product/issues/issue-details.md#feature-flags).

### [Set Up Evaluation Tracking](https://docs.sentry.io/organization/integrations/feature-flag/unleash.md#set-up-evaluation-tracking)

To set up evaluation tracking, visit one of our supported languages pages:

* [JavaScript](https://docs.sentry.io/platforms/javascript/configuration/integrations/unleash.md)
* [Python](https://docs.sentry.io/platforms/python/integrations/feature-flags/unleash.md)
* [Java (through OpenFeature)](https://docs.sentry.io/platforms/java/integrations/openfeature.md)

## [Change Tracking](https://docs.sentry.io/organization/integrations/feature-flag/unleash.md#change-tracking)

Sentry can track changes to feature flag definitions and report suspicious feature flag edits.

### [Set Up Change Tracking](https://docs.sentry.io/organization/integrations/feature-flag/unleash.md#set-up-change-tracking)

Enabling Change Tracking is a three-step process. To get started, visit the [feature flags settings page](https://sentry.io/orgredirect/organizations/:orgslug/settings/feature-flags/change-tracking/) in a new tab. Then follow the steps listed below.

1. **Click the "Add New Provider" button.**

   * One webhook secret can be registered per provider type.
   * Select Unleash in the dropdown that says "Select a provider".

2. **Register the webhook URL**.

   * Go to your Unleash homepage and navigate to the `/integrations/` page, which can be found by clicking Integrations on the left-hand sidebar navigation, under the Configure heading.
   * Select the Webhook option. You should be on the `/integrations/create/webhook/` page.
   * Copy the webhook URL from Sentry settings and paste it into Unleash within their webhook integration UI.
   * Make sure the integration is toggled to Enabled.

3. **Set the Signing Secret**.

   * In the Unleash webhook UI, under the Authorization input box, type in any 32-character string to use as your authorization token ("secret"). Keep this string safe and note it down somewhere in case you need it in the future; Unleash will not show you the token once you save the webhook. We recommend not using any sensitive tokens.
   * Copy your authorization token from the Unleash UI and paste it into the input box next to "Secret" in Sentry settings.

4. **Configure your webhook.**

   * Under the Events input box, specify which feature flag events you'd like to send to Sentry. We currently support the following events:
   * Save the secret by clicking "Add Provider" in Sentry settings.
   * Save the webhook by clicking "Create" in Unleash.

Once saved, Sentry will now accept and authenticate all inbound hooks to your organization's feature flag webhook endpoint.