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Fix Microsoft Planner Guests Not Receiving Task Notifications

Maira Mehtab Sep 22, 2026 868 views

Question details

External guest users in Microsoft Planner are not receiving email notifications for assigned tasks and are unable to view the plan in the web interface.

Product: Microsoft Planner
Device & OS: not provided
Scenario: Assigning tasks and tracking project progress with external guest users in a Planner board.
Observed behavior: Internal team members successfully receive task assignment emails, whereas external guest users receive no notifications and experience issues accessing the web version.

Before you start

Ensure you have admin privileges in your Microsoft 365 tenant to verify organization-wide guest access settings, and confirm that the guest has accepted the initial group invitation.

Solution 1Recommended

Verify Guest Settings and Use Alternative Notification Methods

Because automatic email notifications for guests are currently a limitation in Microsoft Planner, you must verify their access permissions and rely on manual communication or Power Automate flows.

Microsoft Planner's built-in notification system is primarily designed for internal tenant members. Guest email notifications for task assignments are a known feature limitation.

To ensure guests can at least access the board and know their assignments, follow these workaround steps.

Verify Microsoft 365 Guest Access

Log into the Microsoft 365 Admin Center. Navigate to Settings > Org settings > Guest access, and ensure that the toggle for 'Let group owners add people outside your organization to Microsoft 365 Groups as guests' is checked.

Provide the Direct Planner Link

Since guests cannot navigate to the plan from a notification email, copy the URL directly from your browser's address bar while viewing the Planner board and email it to the external user.

Use Microsoft Teams for Notifications

If your Planner is linked to a Teams channel, open the Teams app, navigate to the channel, and manually @mention the guest user in a message to notify them of their newly assigned task.

Submit Feature Feedback

Go to the Microsoft Feedback Portal online, search for 'Planner guest notifications,' and click 'Vote' on existing feature requests to encourage Microsoft to implement this functionality.

Automating Notifications: Advanced users can use Microsoft Power Automate to create a custom flow that triggers an email directly to the 'Assigned To' user whenever a new task is created in Planner.

Free Microsoft Office alternative

Seamless Team Collaboration with WPS Office

If limitations with Microsoft Planner and external guest access are slowing down your workflow, WPS Office offers a lightweight, highly compatible alternative for project tracking and document sharing. Collaborate effortlessly with both internal and external team members without worrying about complex tenant permission settings.

1. Create a Project Tracking Spreadsheet: Open WPS Office and create a new Spreadsheet using one of the built-in project management templates to track tasks and assignees.
2. Generate a Collaboration Link: Click the 'Share' button in the top right corner of the application interface to open the sharing settings.
3. Share with External Guests: Set the document permission to 'Anyone with the link can edit' and send the link directly to your external team members via email or chat.

Free and lightweight Office suite for managing project plans and tasksFully compatible with Microsoft Word, Excel, and PowerPoint file formatsReal-time co-editing and easy link sharing for external guest collaboratorsFamiliar, intuitive user interface that requires no learning curve

microsoft office alternative - wps office

Frequently Asked Questions

Can external guests view Microsoft Planner boards?

Yes, external guests can view Planner boards if guest access is enabled at the Microsoft 365 tenant level and they have been added to the underlying Microsoft 365 Group. However, they may need the direct URL to the plan since they do not receive automatic welcome or assignment emails.

Is there a way to automate task notifications for external guests in Planner?

Yes, you can bypass the built-in limitation by using Microsoft Power Automate. You can create a flow using the 'When a task is created' trigger for Planner, followed by a 'Send an email (V2)' action to email the assigned user, including external guests.

Why do internal team members receive Planner emails but guests do not?

Microsoft Planner is integrated closely with Exchange Online for internal users. The notification system is currently designed primarily for users within the same tenant. Microsoft has acknowledged this limitation for external guests, and users are encouraged to vote for the feature on the Microsoft Feedback portal.

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