
Persevering with these troubleshooting steps will help identify and rectify many common Microsoft 365 synchronization problems. If the size of your .ost file is close to the limit, you could try increasing the limit on your client, restart Outlook and see if there is any difference. Manually forcing synchronizations in this manner can help surface any intermittent errors and confirm if fixes have resolved the issues. Now, manually sync your mailbox using the Update Folder button under the Send/Receive tab. If I check the sync log I see a lot of sync errors for Inbox, sent items and a few other folders. You can check the error message to find the cause behind the sync issue and fix it.
How to force Office 365 to sync?
Method 12: Disable Security Applications
However, his OST file is not anywhere near that size it’s about 5GB. If the problems do not occur in safe mode, its most likely an add-in causing grief. I was wondering if anyone had some insight into an issue I am having with a client.
Method 14: Repair/Reinstall Microsoft Office
I’ve tried the Microsoft office uninstall tool provided by Microsoft (which deletes more items then just control panel uninstall). Now, restart Outlook and check if Outlook synchronization is working. I’m at wits end and Microsoft stopped helping me because they feel the problem is on our end. However, I cannot find any reason why his account would do this only on our domain nothing is blocking our connection to Office 365. However once I joined this computer back to the domain and let it sit for a few days it was also working fine.
This tool is designed to extract mailbox items from orphaned or inaccessible OST files. A large OST file can lead to performance issues and result in Outlook not syncing with the Exchange Server, disrupting your workflow. To resolve this, you can reduce the Outlook data file (OST) size. This can help optimize Outlook’s performance and fix the synchronization issues. We’ve had sync issues with employees from time to time however, re doing the mail profile or wiping the Windows profile usually fixes it. In some cases setting up a new computer replacement was the only option to fix these odd Outlook Sync issues.
How Do I Force Synchronize In Office 365?
As you can see, there are some common themes that can cause synchronization to stop working correctly. Once you have explored the basics like internet connectivity and updated software, examining any error reports becomes critical to zeroing in on the problem. With directory synchronization, you can continue to manage users and groups on-premises and synchronize additions, deletions, and changes to the cloud. But setup is a little complicated and it can sometimes be difficult to identify the source of problems.
A Troubleshooting Guide To Microsoft 365 Sync Issues
I get a "We're having trouble syncing. Click "Sign in again" to fix this issue" error at the top of window. I then check out her profile in exchange admin console and see that none of the changes I made have reflected there, except for her new UPN... We have a Hybrid environment with a lot of our accounts being created on premise in Active Directory and syncing to O365 and exchange. If not, you can completely uninstall Microsoft Office and then reinstall it. I’ve tried to set cache mode from 1 year all the way down to a few days.
- Now, manually sync your mailbox using the Update Folder button under the Send/Receive tab.
- You'll also receive a mail (to the alternate email and to your admin email) from Microsoft 365 that indicates your tenant has encountered directory synchronization errors.
- However I do not use Outlook on it as much as I do on my desktop.
- To check if the security application is causing the issue, you can temporarily disable the antivirus program or Firewall and then update the folders.
- Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support.
We have resources to help you identify potential issues and fix them. After rebuilding the OST file, it’s important to check for any missing mailbox data. If you find any missing items in the new OST file, you can recover them from the backup OST file using Stellar Converter for OST. This professional OST to PST converter tool can extract data from the backup OST file and convert it into PST file, which you can easily import into Outlook. You can easily search for the missing items, select them, and save them in PST and other file formats, such as MSG, EML, RTF, HTML and PDF.

Fixing problems with directory synchronization for Microsoft 365
Once the client started using Outlook again after some time has passed the issue had come back. I ran the PSTscan tool to check for anomalies on the OST file (which it found and repaired but the issue still occurs). Below
Microsoft 365 account recovery help are the steps I’ve taken to try to resolve this issue.