Onenote sync issues now unable to find and open notebooks in app or online

Question

Onenote sync issues now unable to find and open notebooks in app or online

CDG11 0

I recently upgraded to a new iPhone on which I have both OneDrive and the OneNote app. I noticed that my notebooks were not syncing within the app, and when checking on my laptop, I found that there was the same issue. I searched online for some guidance on how to resolve this issue, including manually syncing the notebooks, but had no success. Some of the advice I read was to close the notebooks and then restart the app and attempt to reopen them again. I now have the problem whereby I am unable to find my notebooks within the app, and when I attempt to find them online, they're also not visible. When I use OneDrive on my phone to try and open up a notebook, I get the message that 'OneNote can't open this notebook because it has been deleted or moved'. Can you advise on how to resolve this issue, please?

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2 answers

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Answer 1

Kayece Jan Mae Amizola 16,875 Independent Advisor

Hi,

You mentioned that you do not see the saved notebooks on OneDrive in the web version. May I ask what device you were using when you specifically saved your notebooks? On your laptop or iPhone?
Does this happen just today? If this sync issue only happens today, the syncing issue may be related to the ongoing widespread service outage. Microsoft is currently experiencing a widespread service outage affecting several services, including Microsoft 365 services.

You can check for updates on the Microsoft Service Status page, though the site may also load slowly due to the ongoing disruption. Alternatively, you can follow Microsoft 365 Status on X for the latest announcements.

I look forward to your response.

Stay Safe!

CDG11 0 Reputation points

2026-11-12T22:33:43.21+00:00

I think I only noticed it today but attributed it to a change in phones a few days ago - do you suggest should ignoring it for the time being and trying again tomorrow?
Kayece Jan Mae Amizola 16,875 Reputation points Independent Advisor

2026-11-12T22:36:43.54+00:00

I see. Can you let me know which device you usually use to create and save your notebooks?
CDG11 0 Reputation points

2026-11-12T22:48:23.66+00:00

I most commonly use my work HP laptop to create new notes and notebooks but might occasionally use my iPhone. I can find the notebooks within onedrive (in the documents folder) on my laptop but get an error message when I try to open them.
CDG11 0 Reputation points

2026-11-12T22:51:39.8166667+00:00

When I try to open a notebook via onedrive on my phone I get this message
Kayece Jan Mae Amizola 16,875 Reputation points Independent Advisor

2026-11-12T22:53:40.2866667+00:00

If you still see them on your laptop, there might be a possibility that this is a sync issue. I suggest waiting until tomorrow and then trying to access your notebooks again.

Update me if there are any changes or if the issue persists.

Answer 2

Try this in order:

Check whether the notebook still exists in OneDrive.
- Go to the OneDrive home page and look through folders such as Documents or Notebooks.
- If the notebook is missing there, OneNote cannot open it because the file may have been deleted or moved.
- If the notebook is still present, open it from OneDrive.
On the iPhone, manually force a sync of open notebooks.
- In OneNote, pull down the Notebooks list.
- A spinning progress indicator should appear while OneNote re-syncs open notebooks.
- To sync only the current notebook, pull down the section list or page list.
Re-open any notebooks that may have been closed.
- In OneNote on iPhone, tap More Notebooks at the bottom of the notebooks list.
- Tap the notebooks to open them again.
- If needed, tap Open more from OneDrive.
Search for notes from within OneNote on iPhone.
- Tap Search on the bottom menu.
- Search by a keyword or phrase from the missing notes.
- If the notes are in a notebook that was closed, they will not appear until that notebook is opened again.
Sign out of OneNote and sign back in.
- For persistent sync issues on iOS, sign out of all accounts associated with OneNote and then sign in again.
- After signing back in, try the manual sync step again.
Make sure OneNote is up to date.
- Open the App Store on the iPhone.
- Tap Updates.
- If OneNote appears, tap Update.
If the notebook cannot be opened in OneNote for the web either, treat it as a storage-location issue.
- If the notebook is stored on OneDrive, check the Service Status page for interruptions.
- If the notebook was moved outside OneNote using file-based sync or folder moves, that can break notebook syncing. OneNote notebooks should be moved and synced through OneNote, not by moving .one files or notebook folders with file sync tools.
If the notebook was moved or deleted, confirm the notebook address from desktop OneNote if available.
- In OneNote on Windows, go to File > Info to find the notebook address.
- This helps confirm whether OneNote is pointing to an old or missing location.

The key point from the symptoms is that the notebook may no longer exist at the location OneNote expects. Start by verifying the notebook directly in OneDrive, then re-open it from More Notebooks or from OneDrive if it is still there.