Sending emails from Outlook to OneNote through apps functions is not working

Bill Dinsmore 195 Reputation points
2025-10-03T11:29:07.19+00:00

Yesterday the function that I use in Outlook to send an email directly to a OneNote notebook section stopped working. I receive the following message:

We're sorry. We couldn't create your page. Please try again later. Details

Error: Cannot save this item to a shared notebook due to sensitivity label restrictions. Please save it to personal notebook.

Date: 2025-10-03T11:22:09.626ZSession ID: PII removed.

I reached out to my companies helpdesk IT and received the following response

After a bit of research it looks as though Microsoft did something in their security or updates that may have broke this feature. We dont have any policies set in place that would effect the ability to use that feature. So unfortunately there isn't much we can do as far as that goes

Could this have occurred from MS end? The email workaround doesn't seem to work

Microsoft 365 and Office | OneNote | For business | Windows
Answer recommended by moderator
Amir Haque 580 Reputation points Microsoft Employee Moderator
2025-10-07T16:06:19.9733333+00:00

Update (10/8): A fix has been deployed to the service for this issue. Affected users should start seeing it being resolved for them in the next 24-48 hours.

10/7: This is a known issue and Microsoft is working to further investigate it for a possible fix.

SI MO1166829 has been published to SHD for affected tenants, see below.

Users can't send email or calendar events to OneNote through the "Send to OneNote" add-in in any Outlook client

When users attempt to save an email or calendar event, they receive a message that states, "Error: Cannot save this item to a shared notebook due to sensitivity label restrictions. Please save it to personal notebook."

Current status: Our review of the collected failing request IDs and service logs has determined that this issue may be related to a recent change which enables stricter compliance regulations. We’re further analyzing this change to confirm our suspicions into the underlying cause of impact which will help guide our troubleshooting steps.  

Next update by: Tuesday, October 7, 2025, at 5:30 PM UTC

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  1. Paulo Vianna 35 Reputation points
    2025-10-09T18:00:01.08+00:00

    Sorry for hijacking this thread, but I'm getting errors when starting a new one.

    After an upgrade to Version 2509 (Build 19231.20156 Click-to-Run) and seemingly just like this email-to bug, my problem just started last week.

    When attempting to add Outlook Meeting Details to OneNote, none of the meetings are displayed. No error messages, just a change in behavior. image
    Is this intentional because of the new "stricter compliance regulations", a coincidence, or the same/similar bug?

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  2. Bill Dinsmore 195 Reputation points
    2025-10-09T13:31:37.15+00:00

    As of 08Oct2025 the "Send to OneNote" function is working again. I hope if there was a fix or gremlins have moved on, that the issue is resolved for others as well.

    There are many solutions for email, calendar, notes, tasks, etc. available to users, and individually many of these are better than the MS solution. The strength of Office is the ability to move/generate items from one app to another.

    PS after I wrote this note I saw the post that a solution was enacted. Kudos MS

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  3. jB 10 Reputation points
    2025-10-07T16:41:03.94+00:00

    Cant' t even report the problem in admin center. I receive an error everytime I try to make a report! LOL !!!

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  4. Liora D 18,955 Reputation points Microsoft External Staff Moderator
    2025-10-07T15:36:38.0033333+00:00

    Hi @Bill Dinsmore and everyone following this thread,

    First, thank you for your feedback on my earlier response, I truly appreciate it. It helps me improve how I support the community, and I’m sorry the initial suggestion didn’t help in your case. 

    To everyone following this thread: I want to acknowledge the many confirmations and detailed reports you've shared. It’s clear that this issue is affecting a wide range of users, and I’ve been actively monitoring it since the first reports came in. 

    Based on what’s been shared here and elsewhere, it’s clear that the “Send to OneNote” function is currently broken in New Outlook and Outlook on the Web, while Classic Outlook still works for most users. This distinction is important, and I appreciate those of you who helped clarify it. 

    As of now, Microsoft has not officially acknowledged this as an incident, nor confirmed whether a fix is planned. I know that’s disappointing, especially given how many people are affected. 

    To help Microsoft recognize and prioritize this issue, I strongly encourage you to submit feedback via the Microsoft Feedback Portal. If someone has already posted about this issue, please vote it up and add your experience in the comments. The more voices we raise, the more likely it is that this will be investigated and addressed. 

    User's image

    Additionally, if you are an admin or have access to your organization’s Microsoft 365 Admin Center, please consider reporting the issue directly from there. This allows Microsoft to track the problem at the tenant level and may help escalate it faster. 

    User's image I hope you understand that as a moderator, I don’t have the ability to intervene in product-level issues or influence feature behavior. But I’m here to support you, share updates when available, and help guide you through possible next steps. 

    If anyone has further updates, workarounds, or questions, please feel free to share them here. I’ll continue to follow this thread and assist where I can. 

    Thank you again for your patience, your contributions, and your trust. 

    Warm regards, 

    Liora.

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