If you are an owner of a Microsoft 365 group and you experience an error when attempting to add a Planner plan as a tab to a Teams channel in that group, you may not be a member of the group. This issue can occur when the group is created via the Microsoft Entra portal (entra.microsoft.com) or via a custom script, since group owners are not automatically added as members via these methods. To resolve this error, follow the steps below to add yourself as a member of the group.
Add Yourself as a Member via Outlook
Note: Do not change your role from ‘owner’ to ‘member’ in Teams or Outlook as this will remove you as an owner of the group. By following the instructions below, you will retain your role as an owner.
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Open Outlook (either the desktop app or outlook.office.com).
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Navigate to the Groups section in the navigation pane.
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If you don't see the Groups option, you can find it in More apps in the navigation pane.
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Select Discover groups in the header.
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Search for the name of the Teams team you are trying to use Planner with.
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Select Request to join.
If you are an owner of the group, you should be added as a member without needing approval from another owner. If you are not an owner of the group, you will need to wait until an owner approves your request.
Once you are a member, you should be able to create, view, and edit Planner plans in that group.
Note: If these instructions don't match what you see, you might be using an older version of Outlook. Try Join a group in Outlook.
Add Yourself as a Member via the Microsoft Entra Portal
Instead of using Outlook, you can also add yourself as a member directly at entra.microsoft.com, provided you have appropriate permissions to do so. See How to manage groups - Microsoft Entra.
