--- layout: default title: Alerting nav_order: 34 has_children: true --- # Alerting OpenSearch Dashboards {: .label .label-yellow :} The alerting feature notifies you when data from one or more OpenSearch indices meets certain conditions. For example, you might want to notify a [Slack](https://slack.com/) channel if your application logs more than five HTTP 503 errors in one hour, or you might want to page a developer if no new documents have been indexed in the past 20 minutes. To get started, choose **Alerting** in OpenSearch Dashboards. ![OpenSearch Dashboards side bar with link]({{site.url}}{{site.baseurl}}/images/alerting.png)