Synchronization problems in Outlook and OWA Outlook Microsoft Learn

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Outlook sync issues can be because of corrupted Outlook OST or PST files. Therefore, now we will know the steps to repair the Outlook data file. Here, we will discuss the five manual methods to fix sync issues in Outlook or OWA. Before finding solutions, we suggest that users check their internet connection. Sometimes, Outlook sync issues can arise because of poor internet connection. If you are still facing this issue, kindly follow the solutions below to fix the sync issues in Outlook. Step 5 – Reset IMAP Folder Path (For IMAP Accounts) For more information, see the More information section of this article. After performing these steps, Outlook’s all folders will be synced to the server. If this method doesn’t work for you, navigate to other solutions. Increase Server Timeout Limits We have shared five manual methods in this blog to resolve the Outlook syncing errors.If the test message sends successfully but folders don’t sync, move to the next step.The tool records any differences in a scan log so that you can see what differences the tool found and resolved.For persistent problems, rebuild your Outlook profile or use FixTechGuide’s free diagnostic tools to automate detection of authentication and IMAP errors in seconds.Apart from this, we also discuss the Shoviv OST to PST Converter Tool, a professional way to repair, recover, and convert Outlook data files.It scans your local copy of the .ost file and your mailbox on an Exchange Server.After these instructions, ensure the sync settings are correct and check everything is working well.If you have a slow internet connection or large mailboxes, default timeouts may be too short. Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. If you have a slow internet connection or large mailboxes, default timeouts may be too short. Faulty add-ins (especially antivirus or CRM extensions) can freeze Outlook during synchronization. For a similar error caused by a different issue, refer to Outlook shows Disconnected in status bar if the last character connection status shows disconnected in legacyExchangeDN is a space. This mode is ideal for slow connections or intermittent server responses. Office 365 Activation Failed — Error 0xC004F074 (2025 Fix) The OST Integrity Check Tool does not change your mailbox on the Exchange Server. The tool records any Microsoft Outlook Email Repair Tool Online differences in a scan log so that you can see what differences the tool found and resolved. The scan log also identifies any situations that the tool could not resolve and that you must fix manually. If you have problems when you try to open your .ost file, you can use the Inbox Repair tool (Scanpst.exe) to diagnose and repair errors in your .ost file. The Inbox Repair tool can be used on both .ost files and on Personal Folders (.pst) files. Fix Outlook and Office 365 Sync Issues (2025 Complete Guide) This software also has a splitter option to split large-sized PST files into smaller ones, helping users prevent oversized PST file issues. Once you have completed the steps to fix Outlook sync errors, kindly check if the error has been fixed or not. Follow these steps in order—from quick fixes to deeper technical repairs. Download the tool from Microsoft and run the Outlook diagnostic to auto-detect server and account issues. When synchronization issues occur in Microsoft Outlook or in Microsoft Outlook Web App (formerly Outlook Web Access), you may experience the following symptoms. Manual solutions to resolve Outlook synchronization issues There are various methods to resolve the Outlook sync issues, including manual and third-party solutions. Now, let us start with the manual processes to fix Outlook syncing errors. The other solution to fix Outlook sync issues is recreating Microsoft Outlook profile. After the files get repaired, restart the Outlook program to ensure that the Outlook syncing issues are resolved or not. Before you dive into folder sync issues, read our complete Outlook and Office 365 Sync Guide for an overview of how synchronization works. By limiting synchronization to active folders, Outlook finishes updates faster and troubleshoot Outlook synchronizing folders error avoids timeouts. Use the OST Integrity Check Tool (Scanost.exe) to check your .ost file for inconsistencies. When these symptoms occur, or you have other problems synchronizing, the problem might be a corrupted .ost file. Users can also convert OST files into various file formats, including PST, HTML, EML, MSG, vCard, etc. It also provides the option to export the Outlook OST file into Office 365 and Live Exchange mailboxes. This issue usually happens when Outlook cannot properly connect or sync with your mail server. In this FixTechGuide tutorial, we’ll explore the causes and give you clear, step-by-step solutions to fix it fast. Now, we will verify the server settings to fix the Outlook synchronization error. Incorrect Outlook settings can also be one of the reasons behind Outlook synchronization errors. If these methods do not resolve the issue, we recommend that you rebuild the .ost file. To do this, delete the .ost file, and then let Outlook download the information again from Exchange Server.