Starting with Enterprise Manager (EM) 13c Release 5 RU 15, you can send notifications using the Webhook and Slack Notification Methods.

Using the Webhook Notification Method, you can send EM event and incident notifications to any application that accepts webhook requests.

Using the Slack Notification Method, you can send EM event and incident notifications to Slack.

To access the Webhooks and Slack page navigate to the Setup drop-down menu, hover over Notifications and locate the Webhooks and Slack option.