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Our relationship to the Microsoft Partner Network allows us to provide competitive pricing and authentic software and support, all with a much-needed human element. On Windows, open Credential Manager, pick Windows Credentials, and remove anything related to Office 365 or Microsoft 365. For managed environments, we use Intune or Group Policy to force sign-in credential sync and clear old tokens.
- Users can also convert OST files into various file formats, including PST, HTML, EML, MSG, vCard, etc.
- 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.
- We check that the Work or School Account in Windows Settings is active and linked to the right domain.
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Troubleshooting Microsoft 365 sync issues

At NetTech Consultants, we help organizations keep Microsoft 365 running smoothly and securely. The Users Loaded count will be 0 if all users fail to meet the system's requirements for user records. The Users Processed count will be 0 is there are no users in the synced dataset after filtering.

Common Reasons Behind Outlook Sync Issues
If the old password still works, the reset probably hasn’t synced. To resolve these issues you should run the steps in this article and check online Outlook email repair utility whether the groups in your sync's filtering preference contain users in Azure AD. 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.
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Keeping things updated helps avoid compatibility issues between on-premises Active Directory and Microsoft 365. If problems stick around, we rejoin the devices to Microsoft 365 services. Start by disconnecting the device from Work or School Account settings, then reconnect with the user’s updated password.
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The Summary sheet on the spreadsheet attachment of your sync summary includes an Updated User Count and User Limit. These figures will give you an impression of how far over the limit the account is. Sync failure alerts do not always include a full summary or attachment, you can run a test sync to obtain this data. 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. We have resources to help you identify potential issues and fix them.
What should I do if my sync failed due to authentication issues?
You can run a sync manually with PowerShell or the Azure AD Connect tool to make sure updates go through. Checking the sync logs helps confirm password changes are making it everywhere they should. The Outlook Not Sending or Receiving Email idea is to provide a recycle bin of users who you can delete when you no longer need them. You can view your inactive users on the Users page and delete them as you see fit.
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 device’s keychain.
With apps syncing across devices and cloud services, sync issues are among the most frequently reported M365 problems. These can include missing files, ghost icons, or documents that do not update in real-time. Here, we will troubleshoot Outlook synchronizing folders error discuss the five manual methods to fix sync issues in Outlook or OWA.