Sometimes, incorrect Outlook settings may also cause such errors. In addition, if the errors found in the OST file are not fixed, the file may also become inaccessible and lead to data loss. Once damaged, the file may no longer hold more or newer data or synchronize it with the mailbox as efficiently as earlier due to inconsistencies, leading to missing sub-folder and other similar errors.

Outlook data files, such as OST, may get damaged or corrupt due to oversizing or reasons, such as sudden system crash, Outlook crash, incompatible or faulty add-in, virus or malware intrusion, etc. Profile CorruptionĬorrupt email or user profile is also a reason that can lead to such issues and other problems like outdated emails, poor Outlook performance, errors while sending or receiving messages, and other discrepancies. Missing sub-folders and email items could also be an outcome of such conflict with other programs on the system. For example, it may crash, stop responding or work slow due to conflicts. ConflictĬonflicts with other software, such as antivirus or third-party utility, can impact how Outlook works. There are three common reasons behind such issues where users find missing sub-folders in their Outlook client. Reasons for Sub-Folders Missing in Cached Exchange Mode

Solutions to Fix Sub-Folders Not Appearing in Cached Mode.Reasons for Sub-Folders Missing in Cached Exchange Mode.You will learn the reasons behind such discrepancies and solutions to resolve them and restore your mail items. That’s exactly what we are going to answer in this blog. But why does this happen, and how can you solve it? However, many users have encountered an issue where they can see the subfolders in the OWA, Online Mode, and Outlook Web access but can’t access them in their Outlook client on Windows.

Thus, when you open Outlook Web App (OWA) or access email via Outlook web access, you see all the folders and sub-folders created. The changes are synchronized between the Outlook client and the mailbox server. Furthermore, they can set rules to automatically move specific emails or emails from a specific user or with the subject, etc., to these folders and sub-folders. Users can create email folders and sub-folders to store and manage their emails in the client easily. Microsoft Outlook is a reliable and robust email management client that offers both online and offline modes (also known as Cached Exchange Mode) for accessing Office 365 and Exchange email accounts. Learn the reasons behind the issue and solutions to resolve it and restore all your mail folders and sub-folders using an OST converter software. It also indicates Outlook profile corruption or data file damage that stores the mailbox items, such as Offline Outlook data file (OST).

Missing sub-folders from MS Outlook for Windows is a problem that may occur due to conflicts between Outlook clients and other software.

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