How to Fix SharePoint Word Coauthoring Error When Changes Cannot Be Merged
Question details
Users are unable to save changes and receive an error stating that changes cannot be merged while coauthoring Word documents in SharePoint.
- Product
- Microsoft Word, SharePoint
- Device & OS
- Windows and macOS
- Scenario
- Multiple users are collaborating on a Word document stored in a SharePoint library using the desktop application.
- Observed behavior
- Files suddenly fail to save, AutoSave turns off, and a merge conflict error appears. The issue randomly affects users across different Word versions and operating systems.
Ensure that all collaborators immediately use the 'Save As' function to save a local offline copy of their work to prevent any data loss before attempting to troubleshoot the synchronization issue.
Update Word and Remove Unsupported Features
Outdated Word versions or features incompatible with coauthoring often cause AutoSave failures and merge conflicts.
When coauthoring documents across Windows and macOS, version disparities and unsupported web features can disrupt the merging process. Ensuring everyone uses the same updated version is the first line of defense.
Have all coauthors open Word, navigate to 'File' > 'Account' (or 'Help' > 'Check for Updates' on Mac), and select 'Update Options' > 'Update Now' to ensure everyone is on the latest version.
Open the problematic document directly in Word for the web from SharePoint. If it opens and saves successfully without errors, the issue is likely tied to desktop client caching or local compatibility.
Remove features not supported by real-time coauthoring, such as ActiveX controls, OLE objects, or restricted editing permissions, then attempt to save and sync again.
Clear the Office Document Cache
Corrupted local cache files can prevent Word from successfully communicating and merging changes with the SharePoint server.
Experience Seamless Collaboration with WPS Office
If you frequently encounter coauthoring sync errors or merge conflicts in Microsoft Office, consider switching to WPS Office. It provides a highly compatible, free alternative with robust cloud collaboration features designed to keep your team on the same page.
Frequently Asked Questions
Why does AutoSave turn off randomly during Word coauthoring?
AutoSave may disable automatically if a user opens the document in an older, unsupported version of Word, or if the file contains legacy features like macros or strict password protection that restrict real-time coauthoring.
Does Word coauthoring work smoothly between Windows and Mac users?
Yes, coauthoring works across Windows and macOS, provided all users are running an updated Microsoft 365 subscription version of Word and the document is stored in a modern cloud environment like OneDrive or SharePoint.
How can I recover my changes if SharePoint says they cannot be merged?
Immediately save a local copy of your document using the 'Save As' command. Once the synchronization issue is resolved or the master file is stabilized, you can manually copy and paste your unmerged changes into the main SharePoint document.
