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Fix Planner Premium Cannot Select Plan Error in Portfolio

Maira MehtabMaira Mehtab Sep 22, 2026 868 views

Question details

The user is unable to add a plan to a portfolio in Planner Premium due to a specific error message.

Product
Microsoft Planner Premium
Device & OS
not provided
Scenario
Attempting to add a new or existing plan into a portfolio.
Observed behavior
The system fails to add the plan and displays the error message: 'Could not select plan. Please try again'.
Before you start

Verify that you have a stable internet connection and ensure your account has the necessary administrative permissions to edit portfolios in Planner Premium.

Solution 1Recommended

Isolate the Issue and Gather Tenant Information

Determine the scope of the error to identify if it is a localized browser issue or a broader tenant-wide problem that requires Microsoft Support.

Because this error can be triggered by account permission glitches or backend syncing issues, it is important to narrow down the cause by testing different variables before escalating the issue.

1
Test with a different portfolio

Try adding the plan to a completely different portfolio to check if the 'Could not select plan' error is isolated to just one specific portfolio.

2
Verify impact with colleagues

Ask another user in your organization with appropriate permissions to attempt adding the same plan. This helps determine if the issue is tied specifically to your account.

3
Try an alternative web browser

Log in to Planner Premium using a different web browser or open an incognito/private window to rule out browser cache issues or extension conflicts.

4
Gather diagnostic details for support

Collect your tenant details, plan type, browser version, and take a screenshot of the error message. Contact Microsoft Support and provide these details so the issue can be properly investigated.

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Frequently Asked Questions

Why does Planner Premium say 'Could not select plan'?

This error typically occurs due to backend syncing delays within the Microsoft 365 tenant, local browser cache conflicts, or insufficient account permissions to modify the target portfolio.

How do I know if this Planner error affects all users?

You can determine the scope by asking a colleague with similar permissions to perform the exact same action. If they succeed, the issue is likely isolated to your specific account or browser.

Where can I find my tenant details for Microsoft Support?

Tenant details can be found in the Microsoft 365 Admin Center under the Organization settings. If you do not have admin access, you will need to contact your IT administrator to retrieve your tenant ID.