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How to Fix Microsoft To Do Tasks Not Showing on Mac

John Wilson Sep 27, 2026 869 views

Question details

The user needs to resolve an issue where newly added tasks in Microsoft To Do fail to appear in their task lists on macOS.

How to Fix Microsoft To Do Tasks Not Showing on Mac

Product: Microsoft To Do
Device & OS: macOS
Scenario: Adding new tasks to lists in the Microsoft To Do desktop application on a Mac.
Observed behavior: Tasks are accepted without error messages but fail to display in the lists, and standard troubleshooting like reinstalling or restarting the Mac does not resolve the synchronization issue.

Before you start

Before attempting local fixes, check the Microsoft 365 service status online and verify if your tasks appear on the Microsoft To Do web version (to-do.office.com/tasks/) to rule out server outages.

Solution 1Recommended

Clear Microsoft Office Credentials in Keychain Access

Use this solution to remove stale or corrupted login credentials that are preventing Microsoft To Do from syncing your tasks with the cloud.

macOS stores application login tokens securely in Keychain Access. If these credentials become corrupted or outdated, Microsoft To Do may fail to sync correctly with the server, even if you reinstall the application.

Open Keychain Access

Open Finder on your Mac, navigate to Applications > Utilities, and double-click on Keychain Access to launch the application.

Delete Microsoft Identity Entries

In the Keychain Access search bar at the top right, type 'Microsoft Office'. Select all associated identity and credential entries from the list, right-click them, and choose 'Delete'.

Restart and Sign In

Restart your Mac to apply the changes. Open Microsoft To Do and sign in again with your Microsoft account to establish a fresh server synchronization.

Clear Microsoft Office Credentials in Keychain Access

Data Preservation: Clearing Keychain credentials only removes local login tokens and does not delete your actual tasks stored securely on Microsoft servers.

Solution 2

Test with a New Local macOS User Account

Create a new local user account to determine if the missing tasks issue is caused by corrupted system files within your current macOS user profile.

Free Microsoft Office alternative

Boost Your Productivity with WPS Office for Mac

If you are experiencing persistent synchronization issues or software bugs with Microsoft applications, consider switching to WPS Office. It provides a lightweight, highly compatible, and reliable environment for all your document, spreadsheet, and presentation needs on macOS.

1. Download the App: Visit the official WPS Office website and download the macOS installation package.
2. Install and Launch: Follow the on-screen instructions to install the software, then launch WPS Office from your Applications folder.
3. Open Your Files: Directly open and edit your existing Microsoft Office files without worrying about format conversion issues.

Seamless compatibility with Microsoft Word, Excel, and PowerPoint formatsLightweight application that runs smoothly and efficiently on Mac devices without sync glitchesFree and familiar interface that requires no steep learning curve for seamless migration

microsoft office alternative - wps office

Frequently Asked Questions

Why is Microsoft To Do not syncing between my Mac and iPhone?

Cross-device sync issues often stem from stale login credentials on one device or temporary server outages. Checking the web version to confirm data integrity and clearing the Mac Keychain credentials usually forces a fresh sync across all devices.

Will I lose my tasks if I reinstall Microsoft To Do on Mac?

Reinstalling the app normally clears local application cache and data. Ensure your tasks are successfully synced to the web version at to-do.office.com before uninstalling to prevent the permanent loss of any unsynchronized data.

How do I check if Microsoft services are currently down?

You can verify the operational status of Microsoft 365 services by visiting portal.office.com/ServiceStatus in your web browser. This helps determine if the sync failure is a widespread server outage or an issue isolated to your specific Mac.

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