SharePoint Document Issues

Fix SharePoint Page Approval ClientServiceException Error

Guest Writer Sep 27, 2026 868 views

Question details

Users are unable to submit a SharePoint page for approval due to a specific ClientServiceException error.

How to Fix SharePoint Page Approval ClientServiceException

Product: Microsoft SharePoint
Device & OS: not provided
Scenario: Submitting an edited SharePoint page for content approval in a Site Pages library.
Observed behavior: The system fails to process the approval and displays the error message: "Could not complete that action. Exception of type Microsoft.SharePoint.Client.ClientServiceException was thrown."

Before you start

Verify if the issue is isolated to a single user or affects the entire organization by checking with a colleague, and ensure you have administrative access to the Microsoft 365 Admin Center for support requests.

Solution 1Recommended

Test Submission in an InPrivate or Incognito Browser Window

Using a private browsing window helps rule out corrupted cache, outdated session tokens, or interfering browser extensions as the cause of the approval failure.

Browser cache and third-party extensions can sometimes disrupt the scripts required for SharePoint's approval workflows to execute properly.

Open a private browsing window

Launch your web browser and open an InPrivate window (Ctrl+Shift+N in Edge) or an Incognito window (Ctrl+Shift+N in Chrome).

Log in to SharePoint

Navigate to your SharePoint site, sign in with your Microsoft credentials, and bypass any saved session states.

Submit the page for approval

Navigate to the Site Pages library, edit the affected page, and click the 'Submit for Approval' button again to see if the exception is resolved.

Test Submission in an InPrivate or Incognito Browser Window

Cache cleared: If the action completes successfully in a private window, clear your standard browser cache and cookies, or disable conflicting extensions.

Solution 2

Gather Diagnostic Data and Contact Microsoft Support

If the exception persists across all users, sites, and devices, the issue requires a backend investigation by Microsoft's engineering team.

Free Microsoft Office alternative

Looking for a Reliable Document Solution? Try WPS Office

While waiting for Microsoft to resolve complex SharePoint backend issues, you can continue managing and collaborating on your important files with WPS Office. It is a robust, lightweight suite that handles your documents seamlessly.

1. Download WPS Office: Visit the official WPS website to download and install the free WPS Office suite on your device.
2. Open existing files: Launch WPS Office and directly open your existing .docx, .xlsx, or .pptx files without worrying about format distortion.
3. Collaborate via WPS Cloud: Save your files to WPS Cloud to securely share links with your team and enable co-editing.

Highly compatible with Microsoft Word, Excel, and PowerPoint file formats.Built-in cloud storage for easy document collaboration and sharing.Free to download with a lightweight, fast installation process.Familiar user interface ensuring a seamless migration for teams.

microsoft office alternative - wps office

Frequently Asked Questions

What causes the ClientServiceException in SharePoint?

This exception typically occurs when there is a communication failure or synchronization error between the SharePoint client interface and the backend web services, often triggered during complex automated actions like workflow approvals.

How do I check if my SharePoint site has content approval enabled?

Navigate to the Site Pages library, click the gear icon to open 'Library settings', select 'Versioning settings', and look at the 'Require content approval for submitted items' option.

Can site permissions cause a page approval failure?

Yes, if a user lacks the necessary permission levels to trigger workflows or submit content, an error might occur. However, if site owners and all other users experience the exact same ClientServiceException, it points to a server-side issue rather than a permissions mismatch.

Document & File Issues