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Hi @phil dean
Thank you for reaching out and sharing your situation.
There are a few common causes that could explain why your team can no longer add tasks.
The most likely scenario is that your plan may have been upgraded or converted to the new Planner (Premium) experience. When this happens, the original plan can become read-only and archived, which means users won’t be able to add or edit tasks in it.
In many cases, there is a new (active) version of the plan created during this conversion, and task creation is only possible in that version.
Additionally, there are a couple of other possibilities to check:
- Licensing changes: The Planner service may no longer be enabled for some users, which can prevent task creation.
- Temporary effects of the recent Planner update rollout: Microsoft introduced major changes in early 2026, and some features or behaviors may vary temporarily during rollout.
Here are few steps that you can try:
- Open the plan directly in Planner on the web (not just via Teams)
- Confirm whether the plan shows as read-only or archived
- See if there is a newer version of the same plan available
- Try creating a task in a different plan
- This helps determine if the issue is plan-specific or affecting all plans
- If you have admin access, verify that affected users still have the Planner service enabled in their Microsoft 365 licenses
For more information, please refer to the following link:
I hope this information is useful. Additionally, as other users have raised similar concerns and may not be aware of where to share their feedback, I hope this response helps clarify the situation and suggests a potential next step. Highlighting this information can make it more visible to others in the community who may be facing the same issue, making it easier for them to find guidance and contribute their feedback as well.
Thank you again for your time and for raising this important usability concern. If you have any further questions or need additional assistance, please don’t hesitate to reach out.
I look forward to your thoughts on this.
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