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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.
Top questions it leaders have about microsoft copilot (and how to answer them)
- The Users Processed count will be 0 is there are no users in the synced dataset after filtering.
- The authentication issue occurs because of missing package information about either the Active Directory Authentication Library (ADAL) or Live ID.
- With directory synchronization, you can continue to manage users and groups on-premises and synchronize additions, deletions, and changes to the cloud.
- Similarly you should review the Users Deactivated sheet on the sync summary spreadsheet attachment as you can also delete these users to bring your total down.
- Contact MicroSec today and let our experts handle your Office 365 troubleshooting needs carefully and professionally.
- After you run the commands, and if they completed without errors, you may see a quick progress indicator or a status result that contains information about the package installation.
The Users Processed count will be 0 is there are no users in the diagnose Office activation conflicts 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
Contact MicroSec today and let our experts handle your Office 365 troubleshooting needs carefully and inbox repair tool alternative professionally. A diagnostic tool that automatically detects and fixes common Office 365 problems. We have reset the router, checked internet speeds, signed in and out of M365 apps, reinstalled apps and checked for Windows updates.

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

Comprehensive repair solutions for Office 365 sync problems and login fixes 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

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.