SharePoint Document Issues

How to Fix SharePoint Custom Script Editor Web Part Issues

Maira Mehtab Sep 28, 2026 869 views

Question details

The user needs to find supported alternatives or workarounds for SharePoint pages that depend on the Script Editor web part, as custom scripting currently requires periodic manual re-enabling.

Product: SharePoint
Device & OS: not provided
Scenario: Maintaining custom scripts and web parts on modern or classic SharePoint pages.
Observed behavior: Custom scripting in SharePoint must be re-enabled regularly, which continuously disrupts pages that depend on the Script Editor web part.

Before you start

Ensure you have SharePoint Administrator privileges and access to the Microsoft 365 admin center before attempting to verify tenant-level scripting configurations or running PowerShell modules.

Solution 1Recommended

Review Tenant Configuration for the Modern Script Editor Web Part

Check if the modern Script Editor web part can function on your modern pages without triggering the recurring custom script deactivation.

Microsoft's security policies dictate that custom scripting may be disabled periodically. However, depending on your tenant's configuration, the modern Script Editor web part may bypass some of these limitations on modern pages.

Access SharePoint Admin Center

Log into your Microsoft 365 portal and navigate to the SharePoint Admin Center using your administrator credentials.

Verify Site Settings

Check the custom script settings under the specific site collection to see if they are set to prevent users from running custom scripts.

Test Modern Web Part Deployment

Deploy the modern Script Editor web part on a test modern page. Monitor the page over a 24-hour cycle to determine if it avoids the automatic deactivation experienced by legacy web parts.

Environment Dependency: The modern Script Editor web part may still require custom scripting to be re-enabled periodically in some heavily restricted tenant environments.

Solution 2

Consult Technical Communities for Supported Alternatives

Since scheduled PowerShell workarounds are unreliable due to changing Microsoft policies, consult the official technical community for current SPFx or PowerShell guidance.

Free Microsoft Office alternative

Looking for a Hassle-Free Office Solution? Try WPS Office

While WPS Office does not manage SharePoint scripts or web parts, it serves as a powerful, lightweight, and free alternative to Microsoft Office for creating, editing, and sharing your everyday documents, spreadsheets, and presentations.

1. Download the Installer: Visit the official WPS Office website and download the free installation package for your operating system.
2. Install WPS Office: Run the installer and follow the quick on-screen instructions to set up the software.
3. Open Your Documents: Launch WPS Office and seamlessly open your existing Microsoft Office files without losing any formatting.

Fully compatible with Microsoft Word, Excel, and PowerPoint file formats.Lightweight software with lightning-fast installation and operation.Familiar, tabbed user interface for a seamless migration experience.Free to use with comprehensive built-in PDF editing tools.

Frequently Asked Questions

Why does SharePoint Online keep disabling custom scripts?

Microsoft periodically disables custom scripts on certain SharePoint sites (such as OneDrive and self-service created sites) as a security measure to prevent the execution of untrusted code. Even if an administrator re-enables it, the system may automatically revert the setting within 24 hours.

Does the modern Script Editor web part fix the custom script issue permanently?

Not universally. While the modern Script Editor works better with modern SharePoint pages, it may still require custom scripting to be re-enabled periodically depending on your specific Microsoft 365 tenant environment and security policies.

What is the best permanent alternative to the SharePoint Script Editor?

Instead of relying on the legacy Script Editor and scheduled PowerShell workarounds, Microsoft recommends utilizing the SharePoint Framework (SPFx) to build, package, and deploy custom web parts securely without depending on vulnerable custom scripting settings.

Document & File Issues