How can I make sure that all related people get e-mail notifications for tasks in Planner?

Dear @Nela Zapletalová,

From what you described, I understand that you are using Microsoft Planner where: A task is created and assigned to a user

The assignee is notified about the new task. Later, when someone adds a comment to the task, the assignee does not receive any notification, when you use @mentions in Planner comments does not notify the assignee. You would like this to work automatically, without relying on users to change their own settings

This behavior is by design in Microsoft Planner: Planner sends notifications when a task is assigned. However, comments added to a task do not automatically notify assignees. @mentions are not supported in Planner comments (unlike Microsoft Teams chats). Users usually receive comment notifications only if they have already commented on the task, followed the task, or enabled specific personal notifications

Currently, there is no admin-level setting to force comment notifications for all assignees.

Additionally, Planner plans are backed by Microsoft 365 Groups, and group mailboxes do not support inbox rules or automatic mail forwarding. This is why the “Add new rule” option is disabled.

Therefore, I suggest some workaround may help:

1/ Use Power Automate (recommended)

• Create a flow that detects task updates or new comments
• Automatically send an email or Teams message to all task assignees
• This provides centralized, admin‑controlled notifications
  • For reference: Power Automate & Planner: send email to all Assigned To when a new comment is posted on a Task
  • Note: This information is provided as a convenience to you. These sites are not controlled by Microsoft, and Microsoft cannot make any representations regarding the quality, safety, or suitability of any software or information found there. Please ensure that you fully understand the risks before using any suggestions from the above link.

2/ Use Microsoft Teams for task discussions

• Discuss task details in a Teams channel
• @mentions work as expected and users are notified
• Planner is used for task tracking, Teams for communication

3/ User awareness

• Users need to comment on or follow tasks to receive updates
• I understand this may not be ideal in your scenario, but it reflects the current product design

Moreover, I want you to know that Microsoft deeply values customer experience and feedback. Every single comment matter, and the product teams actively review what customers share to guide decisions and improvements. Your voice is powerful here, and I encourage you to make it heard through the official feedback channels. Therefore, to ensure your feedback reaches the right teams, I highly recommend submitting your feedback directly to Microsoft Ideas · Community, where our product development team can know your requirements and ideas for product improvements. If enough users raise ticket for the same idea, Microsoft may consider adding this feature in the future.

Note: As Microsoft Community moderators, please note that we are not involved in product design decisions and do not have direct access to the development roadmap, we want to assure you that your feedback has been acknowledged and is valued.

However, you can rest assured that you are not alone, I’ll continue to monitor this case and will reach out to you with any new updates as soon as possible. If any updates or announcements are made regarding this feature, I will make sure to share them with you as soon as possible.

I understand this may not be the outcome you were hoping for. I truly appreciate your patience and understanding. If you have any further questions or need further clarification, please feel free to reach out. I'm looking forward to hearing from you.

Thank you for your cooperation.

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