Others

Fix Planner Tasks Not Syncing Between SharePoint and the Web

Tauseeq Magsi Sep 28, 2026 869 views

Question details

User needs to resolve a one-way synchronization issue where tasks created in SharePoint are not displaying in Microsoft Planner on the web.

Fix Planner Tasks Not Syncing Between SharePoint and the Web

Product: Microsoft Planner and SharePoint
Device & OS: not provided
Scenario: Managing team tasks and plans across integrated Microsoft 365 applications.
Observed behavior: Tasks created in Planner on the web appear in SharePoint properly, but tasks added to the Planner plan directly through SharePoint fail to appear in Planner on the web.

Before you start

Verify that your internet connection is stable and ensure you are signed in with the exact same Microsoft 365 account credentials on both SharePoint and Planner.

Solution 1Recommended

Test in a Private Window or Alternative Web Browser

Use an incognito window or a different browser to rule out local cache issues and browser extension conflicts.

Often, one-way syncing issues between Microsoft 365 web applications are caused by corrupted browser cache or interference from third-party extensions. Testing in a clean session helps isolate the problem.

Open a private browsing window

Launch your current web browser and press Ctrl+Shift+N (Chrome/Edge) or Ctrl+Shift+P (Firefox) to open a new private or incognito window.

Sign into Microsoft 365

Navigate to office.com, sign in with your credentials, and open both SharePoint and Planner in separate tabs.

Create a test task

Add a new task to your plan directly through the SharePoint interface.

Check Planner synchronization

Switch to the Planner web tab, refresh the page, and check if the new task appears. If it does, clear your standard browser's cache and cookies to permanently resolve the issue.

Test in a Private Window or Alternative Web Browser

Cache Cleared: If the private window works, clearing your main browser data or switching to a supported browser like Microsoft Edge usually provides a permanent fix.

Solution 2

Isolate the Issue and Contact Microsoft 365 Support

Determine if the synchronization failure is specific to your account, a single plan, or a broader service outage.

Free Microsoft Office alternative

Boost Your Team's Productivity with WPS Office

While you are waiting for Microsoft 365 web syncing issues to resolve, consider using WPS Office for your document collaboration needs. It offers a lightweight, highly compatible, and unified workspace for all your office files without the hassle of complex sync configurations.

1. Download the installer: Visit the official WPS Office website and click the Free Download button.
2. Install the software: Run the downloaded executable file and follow the quick installation prompts.
3. Start collaborating: Open WPS Office, sign in to access cloud features, and begin editing your standard Office documents immediately.

Seamlessly collaborate with your team on local and cloud documents.Outstanding compatibility with Microsoft Word, Excel, and PowerPoint formats.Free, lightweight application that launches instantly on any device.All-in-one tabbed interface for managing documents, spreadsheets, and PDFs efficiently.

microsoft office alternative - wps office

Frequently Asked Questions

Why does Planner sync work one way but not the other?

This one-way synchronization behavior is typically caused by localized browser cache issues, temporary delays in the Microsoft 365 background sync service, or specific permission mismatches between the SharePoint site and its underlying Microsoft 365 Group.

How long does it usually take for SharePoint tasks to appear in Planner?

Under normal conditions, tasks created in SharePoint should sync to Planner almost instantly or within a few seconds. If a task takes longer than a few minutes to appear, there may be a service degradation or a local browser issue.

Will I lose my tasks if they fail to sync to Planner?

No. As long as the tasks are successfully saved and remain visible in your SharePoint site, your data is securely stored within your Microsoft 365 tenant. Once the synchronization issue is resolved, the tasks will populate in Planner.

Office Quick Solutions