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How to Fix Microsoft Planner Item or Storage Limit Error

Maira Mehtab Sep 27, 2026 869 views

Question details

Users receive an item or storage limit error in Microsoft Planner when a plan contains too many tasks, attachments, or items, regardless of how many tasks are marked as completed.

Product: Microsoft Planner
Device & OS: not provided
Scenario: Managing tasks and attachments within a heavily populated Microsoft Planner plan.
Observed behavior: The system triggers a storage or item limit error, preventing the addition of new tasks or attachments.

Before you start

Before making changes, verify your current Planner usage and ensure you have administrative or editing rights to delete tasks or create new plans within your Microsoft 365 environment.

Solution 1Recommended

Clean Up Unnecessary Tasks and Attachments

The most direct way to free up space is by removing obsolete tasks and heavy attachments from the plan.

Even if tasks are marked as completed, they still count towards the total item limits in Microsoft Planner. Permanently deleting old tasks is necessary to free up plan capacity.

Open your plan

Review completed tasks

Scroll to the bottom of your buckets to view completed tasks. Click on the three dots (More options) on the task card and select 'Delete' to permanently remove it.

Remove large attachments

Open active tasks, review the attached files, and remove any attachments that are no longer needed by clicking the 'Remove' icon next to the file name.

Important: Deleted tasks cannot be recovered. Ensure you back up any critical information before confirming deletion.

Solution 2

Split Tasks into a New Plan

If all tasks are necessary, use this workaround to distribute the data load across multiple plans.

Solution 3

Report Unexpected Limits to Microsoft

If the error appears despite having a low number of tasks, it may be a backend glitch that requires Microsoft's attention.

Free Microsoft Office alternative

Manage Your Projects Efficiently with WPS Office

While Microsoft Planner imposes strict item and storage limits, you can manage your project plans and tasks seamlessly using lightweight spreadsheet templates in WPS Office. It provides a free, highly compatible alternative for everyday productivity.

1. Download and Install WPS Office: Visit the official WPS website to download and install the free WPS Office suite on your device.
2. Open WPS Spreadsheet: Launch WPS Office and open WPS Spreadsheet to start a new workbook.
3. Use a Task Template: Click on 'Templates' and search for 'Task Management' or 'Project Plan' to easily organize your tasks without strict item limits.

Highly compatible with Microsoft Office formats including Word, Excel, and PowerPoint.Free and lightweight, avoiding heavy cloud storage constraints for basic task tracking.Abundant free project management and Gantt chart templates available in WPS Spreadsheet.Familiar user interface for seamless transition from Microsoft Office.

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Frequently Asked Questions

What is the maximum task limit in Microsoft Planner?

Microsoft Planner currently limits a single plan to a maximum of 3,000 tasks, which includes both active and completed tasks. Once you reach this threshold, the item or storage limit error will trigger.

Do completed tasks count towards the Planner limit?

Yes, completed tasks remain in the plan's database and continue to count towards the total item limit. You must permanently delete them to free up space.

Can I increase the storage limit for a specific plan?

No, the task and storage limits in Microsoft Planner are hard-coded by Microsoft and cannot be manually increased by users or admins. You must either clean up the plan or split it into multiple plans.

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