Overview

Maintenance windows let you mark matching open alerts as Maintenance during planned work, so operators are not flooded with expected noise. When the window ends, affected alerts return to their previous status automatically.

Topic	Documentation
Create, edit, enable/disable windows	Creating and managing
How alerts are matched and affected	Impact on alerts

Where to find it in the UI

In the sidebar under Management:

• Maintenance Windows → /maintenance-windows

Header actions: Refresh and Create maintenance window. The list supports search (Enter the description or identifier) and Toggle TQL filter mode — see TQL search and filters.

A license counter (active/max) appears when a limit applies — only active windows count toward the maximum.

Permissions

Viewing, creating, editing, enabling/disabling, duplicating, and deleting maintenance windows require the appropriate permissions. If Create maintenance window or row actions are missing, contact your administrator.

How maintenance windows work (summary)

1. You define a Time Range, a required Environment, optional scope fields (Resource, Event, Service, Tags, …), and a Priority.
2. While the window is active (current time between Start Time and End Time), ToBeAlert periodically moves matching open alerts to status Maintenance.
3. Alerts already closed, deleted, expired, or already in maintenance are not changed again by the same task.
4. When no active window matches anymore, alerts in Maintenance are restored to the last non-maintenance status recorded in their history.

This is different from Shelve (a manual operator action) and from suppressing alerts when they are received. See Impact on alerts for details.

Window status in the table

Status	Meaning
active	Current time is inside Start Time – End Time
pending	Start Time is in the future
expired	End Time is in the past

Status labels appear in lowercase English in the table (active, pending, expired).

License limits

Condition	Effect
Feature not enabled	Menu item may show Premium feature / Limited feature
Trial license	Create maintenance window is always disabled
Active window limit reached	Create disabled, tooltip Max items reached, warning icon

Only windows with status active count against the license maximum.

Related modules

Module	Relationship
Alerts dashboard	Matching alerts show status Maintenance; default filters often hide them
Alert filters	Include Maintenance in status filters to review affected alerts
Notification rules	Not automatically disabled for maintenance alerts — tune rules if needed
Policies	Independent — policies transform alerts; maintenance windows change status
Metrics	Maintenance status shifts Current Alerts distribution charts
Service KPIs	Exclude maintenance or test alerts via KPI filters so uptime stays accurate

Best practices

1. Schedule before work starts — use pending windows with accurate Start Time / End Time.
2. Scope narrowly — set Resource, Service, or Tags instead of whole environments when possible.
3. Confirm environment-wide windows — leaving Resource empty affects every matching open alert in that Environment (confirmation dialog).
4. Use priority when overlaps are possible — lower number wins when multiple active windows match the same alert.
5. Review maintenance alerts after the window — filter the dashboard by status Maintenance or check history for unexpected matches.
6. Disable or delete expired windows you no longer need for audit clarity.