Adjusting alert preferences for messages, mentions, and activity within Microsoft Teams
Hi AJ1550
I would recommend referring to AI's response first, as it provides a detailed overview of the available workarounds and notification behavior in Microsoft Planner.
Additionally, according to Microsoft's documentation, Microsoft Planner can send email, push, and Teams notifications for activities such as task assignments, and many notification settings are controlled by the recipients themselves. Microsoft also notes that Teams notifications are managed separately from Planner.
Based on the documented behavior, there does not appear to be a plan-owner setting that places a plan into a completely silent "draft" mode while it is being prepared. To help minimize unexpected notifications, you may wish to complete the initial plan setup before assigning tasks to team members.
For more information, you can refer to:
https://support.microsoft.com/en-us/planner/stay-updated-with-notifications-in-planner
I hope this information helps.