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

# Configure Surface Reviews

> Learn how to add optional or required reviewers to all experiments on a surface.

Add optional or required reviewers to all experiments on a [surface](../surfaces/surface-settings#reviews). Required reviews block the launch of experiments until at least one of the required reviewers has approved the experiment setup.

## Configure Reviews

<Steps>
  <Step title="Go to the surface">
    Go to Confidence and select **Surfaces** on the left sidebar, then select your surface.
  </Step>

  <Step title="Open Settings">
    Click **Settings**.
  </Step>

  <Step title="Edit Reviews">
    In the **Reviews** section, click the edit button to open the review setup dialog.
  </Step>

  <Step title="Select review type">
    Choose a review option:

    * **Don't add reviewers**: Experimenters can add reviewers manually, but the surface won't add any by default.
    * **Add required reviewers**: At least one reviewer assigned by the surface must approve for experiments to launch.
    * **Add optional reviewers**: Add recommended reviewers to all experiments, but experiments can launch without explicit approval.

    Click **Next** to continue.
  </Step>

  <Step title="Select reviewers">
    Select users or groups as reviewers from the dropdown. Click **Next** to continue.
  </Step>

  <Step title="Configure notifications (optional)">
    Add a Slack channel or email address to centralize review request notifications. Reviewers always get personal notifications regardless of these settings. Click **Save** to apply your changes.
  </Step>
</Steps>

<Tip>
  Send all requests to a common Slack channel if there are several reviewers on a surface. This helps keep track of all the review requests and who is reviewing which experiment.
</Tip>

<Note>
  For reviewers to get personal Slack notifications about review requests, they need to [integrate their personal Slack account with Confidence](../notifications/introduction#integrate-your-slack-account-with-confidence).
</Note>

## Related Resources

<CardGroup cols={2}>
  <Card title="Surface Settings Reference" href="/docs/surfaces/surface-settings">
    Deep dive into surface configuration
  </Card>

  <Card title="Configure Notifications" href="/docs/how-to-guides/configure-surface-notifications">
    Set up Slack and email notifications
  </Card>

  <Card title="Experiment Workflow" href="/docs/experiments/workflows/abtests">
    Understand the experiment launch process
  </Card>

  <Card title="Create a Surface" href="/docs/how-to-guides/create-surface">
    Set up a new surface
  </Card>
</CardGroup>