Add How to Troubleshoot Common Microsoft 365 Problems and Issues

Lindsey Bidencope 2025-11-23 06:47:39 +00:00
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Both of our authentication methods can fail if the Enterprise Applications entry for the sync in Azure AD is deleted or if it has had its permissions modified. We go above and beyond the average software reseller because we built our business on trust. As active members in the IT community, we work to support our clients businesses and provide them with peace of mind. After these instructions, ensure the sync settings are correct and check everything is working well. For managed setups, we can push a PowerShell script with Intune or Group Policy to clear cached tokens on all devices. A quick look at the Microsoft Entra Connect Health portal helps us see if sync tasks are current and the connection to Microsoft 365 is steady.
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.Heres a step-by-step approach to help you spot the issue, fix it, and avoid these sync delays down the road.We keep password synchronization reliable by staying proactive and making sure users know how their actions affect access across Microsoft 365 and their devices.Windows, Outlook, and mobile apps often save passwords so users dont have to keep typing them.When they go back to the message and press send they get an error that the message has been deleted.Once you have completed the steps to fix Outlook sync errors, kindly check if the error has been fixed or not.
Troubleshooting Microsoft 365 sync issues
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. 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. For details see Identify directory synchronization errors in Microsoft 365. We also check the synchronization scheduler to confirm delta and full sync cycles finish successfully. We check that Microsoft Entra Connect (Azure AD Connect) runs the latest version and password sync is on.
Common Reasons Behind Outlook Sync Issues
Sometimes, rejoining the device to Azure AD or just reauthenticating in Office apps does the trick. [modern authentication troubleshooting](https://forum.spacemangaming.games/profile.php?id=16629) We usually check settings like Password Writeback, Synchronization Rules Editor, and Service Account Permissions to spot misconfigurations. Sometimes a missing or outdated connector blocks the link between Microsoft Entra ID and your local domain controller.
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Our training has quick guides about what happens after you update your password. For example, you might get signed out or have to reauthenticate on your phone. We also remind users to refresh their Office sign-in token by signing out of all Microsoft apps and signing back in with the new password.
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We show users how to reset passwords using approved methods like the Microsoft 365 portal or self-service password reset (SSPR). If someone changes their password only in the cloud or just on a local system, things can get out of sync pretty quickly. Bad settings in Azure AD Connect cause lots of password sync failures. If password writeback isnt enabled or the service account doesnt have the right permissions, new passwords wont update in Active Directory. That leaves people locked out with their new password on the cloud but not locally. If users are facing syncing issues in Outlook due to corrupt Outlook data files, they must choose a professional tool, like Shoviv OST to PST Converter Tool.
What should I do if my sync failed due to authentication issues?
You can stop any accounts from being brought over by adding them to the sync deny list. Please allow me a few minutes to review your question [mailbox not updating on IMAP](https://worldaid.eu.org/discussion/profile.php?id=1170111) to ensure that I don't miss anything. TrustedTech is a Microsoft solutions Partner in the following areas.
This means that the authentication setup for your sync is no longer valid. This can happen for the a number reasons particularly if your sync authenticates using Delegated Permissions. You will need to have the correct privileges set on your Azure account in order to set up the M365 sync.
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Methods to fix Microsoft Outlook syncing error
Devices sometimes keep using cached passwords even after a successful sync. If users access multiple apps with the same login, we make sure Single Sign-On (SSO) settings line up so the new password works everywhere in Microsoft 365. We look at audit logs in the Microsoft 365 admin center to see when and where the password changed. That tells us if the new credentials made it to the cloud directory. We tell users to sign out completely and remove stored credentials from Windows Credential Manager or their devices keychain.
We check that the Work or School Account in Windows Settings is active and linked to the right domain. 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 [Fix Outlook Not Opening After Windows Update](https://indiancrafts79.com/fix-constant-sign-in-prompt-for-microsoft/) AD since the M365 sync was configured on your account.