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Fix Microsoft Planner Users Not Receiving Task Assignment Notifications

Maira Mehtab Sep 28, 2026 868 views

Question details

Users assigned to tasks in the web version of Microsoft Planner are not receiving notifications, even though their notification settings are enabled.

Product: Microsoft Planner
Device & OS: not provided
Scenario: Assigning tasks to team members and expecting automated alerts to notify them.
Observed behavior: Task assignees do not receive standard Planner notifications, but custom notification flows created in Power Automate trigger successfully.

Before you start

Verify that the affected users have checked their spam or junk email folders and double-check that both email and Teams notification checkboxes are explicitly ticked in their Planner settings.

Solution 1Recommended

Open a Service Request via Microsoft 365 Admin Center

Because Power Automate flows work correctly, the failure points to an issue isolated to Planner's backend notification service. Escalating this to Microsoft Support is required.

Microsoft Planner relies on a specific backend notification service that can sometimes experience tenant-level synchronization or routing issues. Since custom Power Automate triggers are unaffected, local client configurations are likely fine, meaning the fix must come from the server side.

Identify your Administrator

Contact your organization's designated Microsoft 365 administrator or IT department.

Access the Admin Center

Have the administrator log into the Microsoft 365 admin center using their admin credentials.

Navigate to Support

On the left sidebar, click on 'Show all' if necessary, then select 'Support' followed by 'Help & support'.

Submit the Request

Create a new service request. Detail the Planner notification failure and explicitly mention that Power Automate flows still successfully send emails to rule out Exchange issues.

Work with the Product Team

Provide Microsoft Support with any requested tenant information so they can investigate the affected environment.

Solution 2

Set Up a Power Automate Workaround

While waiting for Microsoft Support to resolve the backend service request, you can use a Power Automate flow to temporarily ensure users receive task assignment notifications.

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Frequently Asked Questions

Why are my Microsoft Planner notifications failing but Power Automate succeeds?

Planner uses its own dedicated backend service for sending automated alerts. If this specific service encounters a synchronization error on Microsoft's servers, built-in notifications will fail. Power Automate uses independent API connectors (like Office 365 Outlook) to send messages, bypassing the broken Planner notification service.

Where do I find the notification settings in Microsoft Planner?

Open Planner in your web browser, click the gear icon (Settings) in the top right corner, and select 'Notifications'. Here, you can check the boxes for 'Someone assigns a task to me' and 'A task assigned to me is late'.

Can standard users fix this server-side notification issue?

No. If individual user settings are correct and notifications still fail globally across your team, the problem lies with the Microsoft 365 tenant or server environment. A Microsoft 365 admin must open a support ticket to resolve it.

Does Microsoft Planner send alerts to email or Teams?

By default, Microsoft Planner can send assignment and due date alerts to a user's email inbox. Additionally, if the Planner is attached to a Microsoft Teams channel, notifications can appear in the Teams activity feed depending on channel notification configurations.

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