SharePoint Document Issues

How to Manage SharePoint Storage Limits Across Sites

Chanuka Geekiyanage Oct 10, 2026 870 views

Question details

Users or administrators need to manage and optimize SharePoint storage limits across various sites within an organization's central storage pool.

How to Manage SharePoint Storage Limits Across Sites

Product: SharePoint
Device & OS: not provided
Scenario: An organization is approaching its SharePoint storage capacity limit, or an administrator is trying to increase a specific site's quota without realizing storage is pooled.
Observed behavior: Changing an individual SharePoint site's storage limit does not increase the total storage available to the organization, requiring users to either free up space or buy more capacity.

Before you start

Ensure you have SharePoint Administrator or Global Administrator privileges in Microsoft 365 before attempting to manage organization-wide storage settings or site quotas.

Solution 1Recommended

Free Up Existing SharePoint Storage Space

Because SharePoint uses a centralized storage pool, the most immediate solution is to delete unnecessary files and clear the site recycle bins to free up organizational space.

Emptying the recycle bin is crucial because deleted items still count against your organization's total storage quota until they are permanently removed.

Identify Large and Unused Files

Navigate to your SharePoint site contents and locate unusually large files, outdated document versions, or redundant data folders that can be safely removed.

Delete Unnecessary Files

Select the checkboxes next to the unused files or folders and click the 'Delete' button in the toolbar to move them to the site's recycle bin.

Empty the First-Stage Recycle Bin

Go to 'Recycle bin' located in the site's left-hand navigation menu. Select all items and click 'Empty recycle bin' to clear them from this stage.

Empty the Second-Stage Recycle Bin

Scroll to the bottom of the recycle bin page and click the link for the 'Second-stage recycle bin'. Empty this folder as well to permanently free up the pooled organizational storage.

Free Up Existing SharePoint Storage Space

Storage Allocation Rule: Changing one site's storage limit does not create extra capacity for the organization. The total organizational pool remains exactly the same.

Solution 2

Purchase Additional SharePoint Storage Capacity

If freeing up space is not sufficient for your organization's needs, billing administrators can purchase additional storage to increase the central pool.

Solution 3

Submit a Support Request for Unexplained Reductions

If your site storage limit was reduced but no administrator in your organization made this change, you will need assistance from Microsoft support.

Free Microsoft Office alternative

Manage Your Local Documents Efficiently with WPS Office

While SharePoint manages Microsoft 365 cloud storage limits, you can streamline your local document creation and editing using WPS Office. It provides a lightweight, highly compatible, and free alternative to standard office suites.

1. Download the Installer: Visit the official WPS Office website and download the free installer for your device's operating system.
2. Install the Software: Run the downloaded executable file and follow the quick on-screen prompts to complete the installation.
3. Open and Manage Documents: Launch WPS Office to start creating or editing Word, Excel, and PowerPoint documents entirely free of charge.

Fully compatible with Microsoft Office file formats like .docx, .xlsx, and .pptx.Create and edit documents locally without constantly relying on cloud storage quotas.Lightweight installation that runs smoothly on Windows, Mac, Linux, and mobile devices.Familiar user interface ensuring a seamless migration from Microsoft Office.

microsoft office alternative - wps office

Frequently Asked Questions

Why doesn't increasing a SharePoint site's storage limit add to the total organizational storage?

SharePoint storage is drawn from a central, organization-wide pool. Increasing an individual site's quota simply allows that specific site to use a larger portion of the existing pool; it doesn't increase the total gigabytes available to your Microsoft 365 tenant.

Does the SharePoint recycle bin count against my site storage limits?

Yes, items stored in both the first-stage and second-stage recycle bins count against your organization's total SharePoint storage quota. You must permanently empty both bins to reclaim the storage space.

Who has permission to change SharePoint storage limits or purchase more space?

Only users assigned the SharePoint Administrator or Global Administrator roles can adjust storage limits across sites. Additionally, purchasing more space typically requires Billing Administrator permissions in the Microsoft 365 admin center.

How can I monitor which SharePoint sites are using the most storage?

Administrators can monitor usage by logging into the SharePoint admin center, clicking on 'Active sites' under the 'Sites' menu, and sorting by the 'Storage used' column to identify which sites consume the most space.

Document & File Issues