How To Fix Sync Issues In Outlook Or OWA? A Complete Guide

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.

• Here’s 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.
• When they go back to the message and press send they get an error that the message has been deleted.
• If you're looking for smarter ways to manage, secure, or optimize your Microsoft 365 (M365) environment, our U.S.-based team is here to help.
• 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

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

Sometimes, rejoining the device to Azure AD or just reauthenticating in Office apps does the trick. clear Outlook credentials manager 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 Sometimes a missing or outdated connector blocks the link between Microsoft Entra ID and your local domain controller.

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Now, we will verify the server settings to fix the Outlook synchronization error. Once you have completed the steps to fix Outlook sync errors, kindly check if the error has been fixed or not. The M365 sync establishes a synced dataset based on your M365 data and the filtering configuration of your sync.

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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 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 fix MFA prompts not working 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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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.

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 guide to Office 365 sign-in errors AD since the M365 sync was configured on your account.