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An outlier incident is one that has never occurred in the past period. If an incident is identified as an outlier, responders should be alert. This is critical for On-call engineers because outlier incidents may have unknown impacts, and handling procedures may need to be decided on the spot. Some engineers may only care about outlier incidents—they create standardized processes or SOPs for resolving such incidents.

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View Outlier Incidents

  1. On the incident list page, outlier incidents display a prominent Outlier badge
  2. On incident details page, outlier incidents show a prominent Outlier badge and explanation at the top
Console Outlier Incident Badge

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Recognition Method

The system uses machine learning models to determine similarity between incidents. When similarity exceeds 90%, we consider two incidents similar. When judging similarity, we mainly consider these factors:
FactorDescription
Incident TitleSemantic similarity of title text
Incident DescriptionSemantic similarity of description content
Affected ServiceGenerally extracted from service label
Alert Resources in IncidentGenerally extracted from resource label
When the system detects no similar incidents in the past 30 days, it marks the incident as an outlier.

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Enable and Disable

Outlier incident detection is configured at the channel level:
1

Enter Channel Settings

Go to Channel → Select target channel → Basic Settings
2

Configure Detection Toggle

Find Outlier Incident Detection option, enable or disable the feature
When enabled, incident lists and notification content will include an “Outlier” badge for quick identification. See Create and Manage Channels for details.

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FAQ

No setup or enabling needed. By default, all Professional subscription and above versions trigger outlier incident detection.

Past Incidents

Review historical similar incident resolutions

What is an Incident

Understand incident basics and lifecycle