How to fix Planner error: You do not have access to this plan

Hello Jeanie,

Thank you very much for responding to my questions. Please find my answer below in regard to your questions.

• Are you accessing the Planner app or on the web? Where is this issue occurring, or is it happening in both? 
  -> This issue is occurring on both the app and on the web. I initially created the plan on Planner app.
• What about other Plans? Please try to create a new Plan and add members and see if you can access it normally.  -> I also lost access to other Plans, including Plan made by me as well. When I tried to create a new plan, the following error message appears:
  You no longer have access to that data.Technical details Correlation Id: PII REMOVED
• Confirm that the Microsoft 365 Group linked to your Teams channel still exists and has not been soft deleted. Verify the Group Membership. The admin should manually check and attempt to re-add you and the other team members to the Group's Membership list to see if the issue persists. 
  -> I am the admin of the channel that linked to the plan. I have also myself left the group and asked another admin to add me back in; however, we cannot view plan still.
• Also, help me check the Audit Log for any actions that occurred around October 30th (or the date the issue started) which might indicate the deletion or modification of group permissions/members. Search the audit log | Microsoft Learn 
  -> Unfortunately, I do not have permission to perform this.

Please let me know if you need more information.

Best regards,
Hiep Do

Dear @Do Hoang Hiep, 

Thank you for your response. Please kindly help me check some more steps below:

Check license Microsoft Planner

• Visit office.com
• In the lower-left corner, click on your account name
• Click View my 365 profile > Subscriptions > View subscriptions
• Check if you have a Microsoft Planner license

Try creating a new Plan in InPrivate mode

• Open the InPrivate browser (incognito)
• Log in and try creating a new Plan to see if it's accessible.

If the license is still available (the issue is not licensed) but the issue affects multiple users, you must now ask Global Admin to report the issue to Microsoft or raise a ticket to Microsoft so that the Microsoft technical support team can investigate the affected tenant. Because I'm just a moderator of the forum, I'm not provided with the tools to access it for the purpose of securing data for Microsoft clients.

After the inspection, please give me feedback so I can guide how to report or raise ticket to Microsoft.

Hi Jeanie,

Thank you very much for your response.
Apparently, I do not Microsoft Planner under my subscription at the moment (and so does my coworkers); so I guess this is why we are losing permission to access Planner.
Would you recommend that the easiest way to recover access is to add the Microsoft Planner licenses back into our team's account?

Best regards,
Hiep Do

Dear @Do Hoang Hiep, 

You’ll need to ask the Global Admin in your organization to perform this action, as only they have the necessary permissions. From what you mentioned earlier, it seems you don’t have permission to access the Audit log, which suggests you’re not a Global Admin.

Please request your Global Admin to do the following:

1. Sign in to Admin Center
2. Go to Users > Active Users
3. Select your user account (and any other users facing the same issue)
4. Switch to the Licenses and Apps tab
5. Scroll down to the Apps section
6. Find Microsoft Planner and check the box to enable it

Once this is done, your account should regain access to Planner. If you’re unsure who the Global Admin is within your account's organization, you can find guidance on locating them here:  How do I find my Microsoft 365 admin? - Microsoft Support or it could be the person who set up and gave you your work account (usually the IT Admin of the organization).

If my answer is helpful, please help me consider click "Accepted Answer" to help others find this information in community more easily.

Dear Jeanie,

Thank you very much for your support!
I have accepted the answer.

Best regards,
Hiep Do