Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
Hi Mark,
It is expected behavior that users who have no Exchange Online mailboxes may have issue with viewing or adding comments to a task and issues with viewing their favorite plans in Planner. Please kindly refer to the detailed information in this article.
If it is not your scenario, please post a new thread in the forum since we mainly focus on one issue in one thread. We appreciate your understanding.
Regards,
Tina