opensearch-docs-cn/_monitoring-plugins/alerting/index.md

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title: Alerting
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# Alerting
OpenSearch Dashboards
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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)