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How to Fix OneNote Tasks Still Assigned to Previous Owner in Outlook

Partner Editor Oct 7, 2026 869 views

Question details

The user needs to resolve an issue where OneNote tasks continue to appear in the previous owner's Outlook To Do list even after the notebook's ownership has been transferred to a new account.

How to Fix OneNote Tasks Still Assigned to Previous Owner in Outlook

Product: Microsoft OneNote and Outlook
Device & OS: not provided
Scenario: Managing tasks and syncing them between OneNote and Outlook after an account or ownership change.
Observed behavior: Flagged OneNote tasks are being assigned to and appearing in the original user's Outlook account instead of the new owner's account.

Before you start

Ensure both Microsoft OneNote and the Outlook desktop application are installed, and that you have the login credentials for the new email account you want to use as your default.

Solution 1Recommended

Verify Task Owner and Change the Default Account in Outlook

Since OneNote automatically syncs flagged tasks to the default Outlook account, updating the default email account in Outlook will route future tasks to the correct new owner.

Even if you are working in a newly transferred OneNote notebook, the application relies on your Outlook desktop settings to determine where to send flagged tasks. Changing the default account at the system level resolves this sync behavior.

Check the current task owner in OneNote

Open your notebook in OneNote, right-click the flagged task, and select 'Open Task in Outlook'. In the task window that opens, verify whether the task belongs to your new account or the original account.

Open Outlook Account Settings

Launch the Microsoft Outlook desktop app. Click on 'File' in the top left corner, navigate to 'Info', and select 'Account Settings', followed by 'Account Settings' from the dropdown menu.

Change the default email account

In the Account Settings window, go to the 'Email' tab. Locate your new email account, select it, and click 'Set as Default'. Ensure the old account is no longer marked as the default.

Restart applications

Close both Microsoft Outlook and OneNote completely. Reopen both applications to allow the new default account settings to take effect, and try creating a new task to verify the fix.

Verify Task Owner and Change the Default Account in Outlook

Existing Tasks: Changing the default account will only apply to new tasks you flag moving forward. Existing tasks sent to the previous owner's account will not automatically move to the new account.

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Frequently Asked Questions

Why do my OneNote tasks keep going to my old Outlook account?

OneNote automatically sends flagged tasks to whichever email account is set as the default in your Outlook desktop application. If you recently changed accounts or took ownership of a notebook, you must manually update the default account in Outlook's Account Settings.

Will changing my default Outlook account automatically move my existing tasks?

No, changing the default account only routes newly flagged OneNote tasks to the new account. Existing tasks that were already synced to the old account will remain there unless manually moved or recreated.

How do I check who currently owns a specific OneNote task?

You can easily check the task owner by right-clicking the flag icon next to the task in OneNote and selecting 'Open Task in Outlook'. The resulting Outlook window will display the account associated with that specific task.

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