Amazon CodeCatalyst is no longer open to new customers. Existing customers can continue to use the service as normal. For more information, see [How to migrate from CodeCatalyst](migration.md).

# Configuring approval notifications
<a name="workflows-approval-notify"></a>

You can have CodeCatalyst send a notification to a Slack channel informing users that a workflow run requires an approval. Users see the notification and click the link inside of it. The link takes them to a CodeCatalyst approvals page where they can either approve or reject the workflow.

You can also configure notifications to inform users that a workflow was approved, rejected, or that the approval request has expired.

Use the following instructions to set up Slack notifications.

**Before you begin**  
Make sure you have added an **Approval** gate to your workflow. For more information, see [Adding an 'Approval' gate](workflows-approval-add.md).

**To send workflow approval notifications to a Slack channel**

1. Configure CodeCatalyst with Slack. For more information, see [Getting started with Slack notifications](getting-started-notifications.md).

1. In the CodeCatalyst project that contains the workflow that requires an approval, enable notifications, if they're not already enabled. To enable notifications:

   1. Navigate to your project and in the navigation pane, choose **Project settings**.

   1. At the top, choose **Notifications**.

   1. In **Notification events**, choose **Edit notifications**.

   1. Turn on **Workflow approval pending** and choose a Slack channel where CodeCatalyst will send the notification. 

   1. (Optional) Turn on additional notifications to alert people about approved, rejected, and expired approvals. You can turn on **Workflow run approved**, **Workflow run rejected**, **Workflow approval superseded**, and **Workflow approval timed out**. Next to each notification, choose the Slack channel where CodeCatalyst will send the notification.

   1. Choose **Save**.