Planner task comments no longer send email notifications – critical regression

This change removed a previously existing core functionality without providing an adequate replacement.

With the new Planner experience, task comments no longer trigger automatic email notifications to assigned users. This breaks a critical communication mechanism that many teams relied on for reliable task coordination.

As a result, assigned users are no longer consistently informed about updates, introducing a high risk of missed information and operational issues in day-to-day work.

There is currently no supported or enforceable alternative to ensure users are notified.

Previous behavior:

• Task comments triggered automatic email notifications
• Assigned users were reliably informed
• Communication was traceable and consistent

Current behavior:

• No automatic email notifications
• No configuration to restore this
• @mentions required (manual, error-prone, not enforceable)

Microsoft Support has confirmed that this is by design and cannot be reverted.

From an enterprise perspective, this is not just a design change, but a regression of critical functionality without an equivalent replacement.

Request:
Please restore automatic email notifications for task discussions or provide a reliable, enforceable alternative for notifying assigned users.

Question to the community:
How are you handling this change in real-world scenarios?

• Switching tools?
• Enforcing @mentions?
• Moving communication out of Planner?

Would appreciate hearing how others are dealing with this.