Troubleshooting Microsoft 365 sync issues usecure Help Centre

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The simplest way to resolve authentication issues is to rerun the authentication process by clicking the Sign in with Microsoft on the Microsoft 365 settings page.



Troubleshoot Office 365 Sync and Login Issues

You can close the wizard at this point as you do not need to complete it for re-authentication to take effect. You should run a test sync after re-authenticating the sync to ensure it is working. It could be due to incorrect login details, administrator password resets, or account lockouts after multiple failed attempts. Whether it’s a Microsoft Office 365 sign-in problem or a password reset issue, here’s how to get back in securely.

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  • Find out what to do if you are having issues with syncing users or groups from Microsoft 365.
  • TrustedTech is dedicated to being a reliable resource for all software and technology support needs.
  • To diagnose and automatically fix several common Microsoft 365 sign-in issues, run the Microsoft 365 Sign-in troubleshooter.
  • From sync errors to sign-in challenges and collaboration setbacks, these common Office 365 troubleshooting techniques can restore service quickly.
  • These figures will give you an impression of how far over the limit the account is.
  • Real-time collaboration is at the core of Microsoft 365; however, issues can arise due to permissions, software version conflicts, or connectivity problems.


The Users Processed count will be 0 is there are no users in the FixTechGuide fix for stuck folders synced dataset after filtering. If you don't wish an inactive user to be made active by the M365 sync, you can add the user's email address to the sync forbid list. You can do this in the Microsoft 365 Sync Wizard on the configuration page of your platform settings. 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.

I got an error message that my company has exceeded the number of objects that can be synchronized



Our licensing engineers can help triage complex problems and ensure you're on the right support path. The error message in the Summary sheet of the Sync Summary spreadsheet attachment can also highlight the reason for this. Both of our authentication methods can fail if the Enterprise Applications entry for the sync in Azure AD is deleted or FixTechGuide Windows update Outlook fix if it has had its permissions modified. You can stop any accounts from being brought over by adding them to the sync deny list. Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support.



What should I do if my sync failed due to authentication issues?



Troubleshoot Office 365 Sync and Login Issues

Comprehensive repair solutions for Fix Outlook and Office365 Sync Issues Office apps—both Quick Repair and Online Repair to ensure minimal downtime. To identify Microsoft-side issues affecting Office 365 services. Are you facing Microsoft Office 365 not opening or continuing to crash? This is one of the most frustrating issues with Microsoft Office, often caused by update failures, corrupted files, or compatibility problems. Discover how IT leaders can address key Microsoft Copilot questions on cost, deployment, security, and integration to maximize ROI and adoption. In these cases, direct escalation to Microsoft or working with a Microsoft CSP partner, such as TrustedTech, can expedite resolution and minimize downtime.

Tools & Methods To Use to Troubleshoot Office 365 Issues



Troubleshoot Office 365 Sync and Login Issues

While M365 is highly stable, it’s not immune to occasional disruptions. The sync will fail if the groups you selected to load users from no longer exist in Azure AD. Typically this is because the selected groups have been deleted from Azure AD since the M365 sync was configured on your account. To get the sync working you will either need to delete users or have the user limit on your account increased.
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