Outlook web notes disappeared, despite it says i have 9

Hello @Ádám Nagy, 

Thank you for reaching out to the Q&A forum! 

Based the information you provided, it's quite unusual that Outlook Web shows 9 notes in the Note section, yet the folder appears completely empty when opened. 

To help me narrow down the issue, please follow few steps: 

1. Browser-related troubleshooting: 

I think this could potentially be related to a web browser issue, such as cached data interfering with the display. To help rule that out, please try the following: 

• Clear your browser cache. If you're using Microsoft Edge, you can follow this guide:  How to Manage and Clear Your Cache and Cookies | Edge Learning Center 

• Alternatively, you can try opening Outlook Web in a private/incognito window to see if the notes appear. 

2. Check Outlook Desktop App: 

To confirm whether the issue is specific to Outlook Web or affects your mailbox more broadly: 

• You can try checking in Outlook Desktop. 
• If possible, you need to look for your notes in both the main mailbox and any archive folders. 

This issue could be related to mailbox retention or archive policies that were recently adjusted. Notes may have been automatically moved to the Online Archive mailbox, even though your intention was only to archive emails. If so, please check all accessible archive folder locations, both locally and online. 

3. Search and recovery options: 

Even if you didn’t delete the notes manually, please check your Deleted Items folder. If found there, you can try Recover Deleted Items from Server. 

As I mentioned before this is quite an uncommon issue, that’s why I’d like to start with some basic troubleshooting steps to better understand the situation. If none of the above steps help, I’d like to reconfirm: 

Are you using a work account that is managed by your organization (e.g., via Microsoft 365 for Business or Exchange Online)? 

This will help me guide you on how to reach out to our technical support team, who can access the backend and investigate further. 

Please understand that our initial response does not always resolve the issue immediately. However, with your help and more detailed information, we can work together to find a solution. 

Look forward to hearing from you!

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