---
sourceDocument: Brazil IT Operations Management
sourceDocumentLink: https://www.servicenow.com/docs/r/it-operations-management

 Release :

    - brazil

ft:locale :

    - en-US

ft:publication_title :

    - Brazil IT Operations Management

ft:clusterId :

    - itom

bundleId :

    - itom

workflow :

    - Technology


---

# Change a custom Log Analytics alert rule

# Change a custom Log Analytics alert rule in Health Log Analytics {#ariaid-title1}

Release version: Brazil  
Updated September 10, 2026  
![](https://www.servicenow.com/docs/portal-asset/ico-clock) 1 minute to read  
Modify a Log Analytics alert rule that you have defined.

## Before you begin

For background information, see [Alert rules in Health Log Analytics](https://www.servicenow.com/docs/mJs4w84c4YGO4Gfe18HCiA "Health Log Analytics (HLA) detects anomalies automatically by learning from your log data. However, some log types require a custom alert rule to generate alerts reliably.").


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 WorkspacesService Operations Workspace and select the Log Viewer icon (![Log Viewer icon.]()).
   * While viewing log entries for an alert on the Surrounding logs tab, select Log Viewer.
   {#hla-op-defined-alert-modify-sow__choices_ic4_dwh_gtb}
2. Open a defined alert.
   1. Select the selection icon (![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.
   {#hla-op-defined-alert-modify-sow__substeps_sny_bvj_gtb}
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://www.servicenow.com/docs/CYo_ubmwlQbYsiecEqIJXg "Define a custom Log Analytics alert rule for log data that might not generate alerts automatically. A custom rule enables you to specify the metric, threshold, and alert properties directly.").
4. Select Save to save your changes.
{#hla-op-defined-alert-modify-sow__steps_dsw_kdx_stb}

*[\>]: and then