--- title: Change a custom Log Analytics alert rule in Health Log Analytics description: Modify a Log Analytics alert rule that you have defined. locale: en-US canonical_url: https://www.servicenow.com/docs/r/australia/it-operations-management/health-log-analytics/hla-op-defined-alert-modify-sow.html release: australia product: Health Log Analytics classification: health-log-analytics topic_type: task last_updated: "2026-03-12" reading_time_minutes: 1 keywords: [Health Log Analytics, log analytics alert rule, modify alert rule, change alert rule, update alert settings, defined alerts, Log viewer, Defined alerts table, alert rule management, alert configuration, custom alert rules, alert settings, alert rule modification] breadcrumb: [Use custom alert rules, Managing alert generation, prioritization, anomaly detection, Health Log Analytics, ITOM AIOps, IT Operations Management] --- # Change a custom Log Analytics alert rule in Health Log Analytics Modify a Log Analytics alert rule that you have defined. ## Before you begin For background information, see [Alert rules in Health Log Analytics](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/it-operations-management/health-log-analytics/hla-custom-alert-rules.md). This feature is supported in the Health Log Analytics application, Version 20.0.11 - July 2021, and the Health Log Analytics Viewer application, Version 20.0.4 - July 2021, available from the [ServiceNow Store](https://store.servicenow.com/sn_appstore_store.do#!/store/home). Role required: evt\_mgmt\_operator or evt\_mgmt\_admin ## Procedure 1. Open the **Log Viewer** using one of the following methods: - Navigate to **Workspaces** > **Service Operations Workspace** and select the Log Viewer icon \(\[Omitted image "icon-log-viewer-sow.png"\] Alt text: Log Viewer icon.\). - While viewing log entries for an alert on the **Surrounding logs** tab, select **Log Viewer**. 2. Open a defined alert. 1. Select the selection icon \(\[Omitted image "icon-selection-sow.png"\] Alt text: Selection icon.\) at the top right of the **Log viewer** tab, and then choose **Manage my defined alerts** from the drop-down list. 2. From the **Defined alerts** table, select the alert rule that you want to modify. 3. On the form, update the settings. For a description of the settings, see [Define a custom Log Analytics alert rule in Health Log Analytics](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/it-operations-management/health-log-analytics/hla-op-alert-rule-add-sow.md). 4. Select **Save** to save your changes.