Where to find it: in the Hub (your MSP workspace at app.theonestack.com), open RMM, then use the RMM sidebar or page links below:
- RMM → Policies → Maintenance Windows: app.theonestack.com/rmm/maintenance-windows
Overview
A maintenance window is a scheduled time block during which alert notifications and automated actions are suppressed for selected devices. Technicians use maintenance windows to prevent false alarms during planned downtime, patching, or on-site work.
Creating a Maintenance Window
- Go to Maintenance in the RMM navigation.
- Click New Window.
- Fill in the details:
- Name — a short label so you can identify the window later.
- Devices or client — choose which devices the window applies to. You can pick individual devices, an entire client, or a device group.
- Start time and end time — set the exact start and end of the window in the client's local time zone.
- Set the suppression options:
- Suppress alerts — matching alerts are held and not sent to your notification channels.
- Pause automations — event-triggered and threshold automations do not fire during the window.
- You can enable both at the same time.
- If this window should repeat, turn on Recurring and choose:
- Daily, weekly (choose which days), or monthly.
- An end date for the recurrence if it should not run indefinitely.
- Click Save.
What Happens During a Window
- Alerts that fire for covered devices are suppressed — they are created in the system but flagged as suppressed and not sent to email, SMS, or ticketing integrations.
- Automations that would fire due to a threshold or event on a covered device are skipped for the duration.
- Patches can still be deployed to windows configured to run "during the next maintenance window." Patch deployments are not suppressed — suppression only applies to monitoring noise.
Viewing Suppressed Alerts
After a maintenance window ends, the suppressed alerts are visible on the Alerts page. A Suppression Rollup panel shows how many alerts were held and for which devices. This gives you a record of what would have fired without confirming that anything went wrong.
Extending or Deactivating a Window
If planned work runs longer than expected:
- Find the window in the Maintenance list.
- Click Extend and add time to the end.
- To end it early, click Deactivate.
Recurring Schedules
Recurring windows follow the same schedule each cycle. If you need to skip one occurrence without deleting the series, deactivate the window for that occurrence and re-enable it afterward.
Frequently Asked Questions
Alerts are still firing during my maintenance window.
Confirm the window is active (not just saved) and that the alerting device is covered by the window's scope. Check whether the window is set to suppress alerts — it is possible only automation pausing was enabled.
Does a maintenance window stop patches from deploying?
No. Maintenance windows suppress monitoring noise. Patching deployments targeted at "next maintenance window" will still run during the window as intended.
Can I create a one-time emergency window quickly?
Yes. Create a new window with a start time of now and set a short end time. There is no minimum duration.
How do I see all maintenance windows for a single client?
Filter the Maintenance list by client name. All windows scoped to that client appear in the filtered view.