How Can You Fix a OneNote Sync Error

When OneNote fails to sync properly, you'll be presented with one of the numerous OneNote sync errors. Sync errors can be caused by a slow internet connection, a disabled sync feature, insufficient storage space, an outdated app, or even a problem with your OneNote account.

To help you solve this issue, we'll discuss some of the most common OneNote sync errors and provide solutions for fixing them.

Preliminary Checks

Before you attempt to fix OneNote sync errors, perform the following preliminary checks first:

• Make sure OneDrive isn't experiencing any downtime. This can be verified on Microsoft's Service health page.
• Try opening the OneNote Web client without closing the OneNote app and see if the error persists. This will help determine whether the problem is with your account or the app itself.
• If only a single notebook fails to sync, close and reopen it to rule out temporary glitches.
• If you could see the Get Help button in the error window, click it to see more details on the error and relevant fixes.
• If most of the OneNote features aren't working, you might need to fix OneNote itself instead of trying to fix each individual issue. For that, you can check out our article explaining fixes you can try if OneNote isn't working.

If you encounter OneNote sync errors, avoid signing in and out of your account. Attempting to do so without getting the error fixed may result in data loss.

Now, let's look at the most common sync errors you may encounter in OneNote, along with their solutions:

1. OneNote Sync Error Code 0xE4010641 (Network Disconnected)

The OneNote sync error 0xE4010641 (Network Disconnected) occurs when your storage server or internet connection goes down, preventing your notes from syncing. Here are some checks you can make to fix this error:

• Ensure your device has an active internet connection and is reasonably stable. You can try running other apps to see if they work fine.
• Ensure the organization server or third-party service, which stores your OneNote synced content, is online.

2. OneNote Sync Error Code 0xE40105F9 (Unsupported Client Build)

The 0xE40105F9 (Unsupported Client Build) error code appears when there is a mismatch between the OneNote version on your device and the one you used somewhere else to save the synced content. The solution to this is to update OneNote or download the latest version. Here are the steps you need to follow:

Click on the Update Now option from the Update Options dropdown.

3. OneNote Sync Error Code 0xE000005E (ReferencedRevisionNotFound)

In OneNote, the 0xE000005E (ReferencedRevisionNotFound) error code appears when a section of one or more notebooks fails to sync. Follow the below steps to resolve this issue:

Right-click on the notebook name in the top-right corner and click on Notebook Sync Status...

In the Shared Notebook Synchronization window, click the Sync now button next to the notebook that isn't syncing.

If you fail to sync it manually, you can create a new section in the same notebook, copy all content from your old notebook section to the new, and force sync OneNote again by pressing Shift + F9. If the new notebook syncs perfectly, you can delete the old one, and you're good to go.

4. OneNote Sync Error Code 0xE000002E (Out of Sync with Store)

The OneNote sync error code 0xE000002E (Out of Sync with Store) occurs when OneNote fails to sync the information, but it needs to. When you encounter this error, you must run a sync to resolve the problem.

Pressing Shift + F9 will force a full sync and fix the error. If it doesn't work, you can manually sync it using the same steps discussed above for error code 0xE000005E.

5. OneNote Sync Error Code 0xE0190193 (403: Forbidden)

The OneNote sync error code 0xE0190193 (403: Forbidden) occurs when you try to access a restricted section of a notebook that was previously available to you. This error can only occur if the notebook's administrator has changed the permission, so you should ask him to permit you to access it once more to fix this error.

6. OneNote Sync Error Code 0xE4020045 (Unsupported Client)

The 0xE4020045 error code occurs when a locally stored notebook is not properly relocated to OneDrive during the backup or sync process.

When you incorrectly relocated the files, did you click the yellow Info Bar and encounter the error? If yes, you need to force sync OneNote by pressing Shift + F9 or manually sync it. If that doesn't work, follow the below steps:

C:/Users/username\Documents\OneNote Notebooks

Press Win + R, type "%systemroot%," and hit Enter to access the system root location.

Paste the copied folder into the root location.

The above steps will help you re-open the notebook you're having issues with, so you won't encounter the same error again.

7. Sync Errors in OneNote Due to Low Disk Space

In OneNote, the error codes 0xE0000796 (Quota Exceeded) and 0xE00015E0 occur when there is insufficient disk space. Any of these errors indicate that your OneDrive or SharePoint storage is low on space, and if you store the files locally, it's time to clear some space there.

Therefore, you can either delete existing backups to make room for new ones or optimize them to take up less space. You can delete backups by heading to where they are stored. To optimize, follow these steps:

Go to the Optimizing files section and click on Optimize All Files Now.

In case you continue to have issues with OneNote, you can also switch to Google Keep, which is one of the best alternatives to OneNote. Here are the differences between OneNote and Google Keep, so you can make an informed switch.

Get Rid of Sync Errors in OneNote

Hopefully, the solutions provided in this article will help you fix OneNote sync errors. As you are familiar with them now, you'll know what to do if you encounter any of them.

Do you know you can text search in OneNote, color notebooks and give them nicknames, copy a link to a particular paragraph and send it to others? Perhaps you haven't explored these features yet.

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