*** Please make sure that your students are on the latest build of MAC OS – it should be macOS 13.2 Ventura! ***

For this solution, you'll have to open up that favorite web browser of yours and go online. Only the internet can save you here, oh ye loyal Mac users.

By going to the OneNote website (www.onenote.com) you can ascertain whether the problem lies with the OneNote server or with your OneNote.

1. Open your "Applications" folder.

2. Launch "OneNote."

3. In the OneNote toolbar, click on "Notebooks."

4. Click on "Notebooks" again, click on "Copy Link to Notebook."

5. Open up a browser (Google Chrome, Firefox, etc. Any of them will work) and click inside the Address box.

6. Press "Command" + "V" on your Mac's keyboard and paste the URL you copied in the step above. Press "Enter" and the notebook will be loaded in OneNote Online.

If, after doing all this, you open the notebook via OneNote Online without any hiccups and with the changes you made appearing too, the issue could be traced to the OneNote of your Mac.

Just close and re-open the notebook. Doing that often clears the connection and resets it too, making sure you don't come across such a problem again anytime soon. Do that by following the steps given below:

1. Go to the menu bar of your Mac's OneNote and click on "Notebooks."

2. Click on "Notebooks" once again.

3. Click "Close This Notebook."

4. Go back to the notebook in OneNote Online on your browser. Click on "Open in OneNote."

Have you followed the above instructions? They didn't help? You mean you still can't open and view the notebook via One Note Online? Well, that is unfortunate - It's very probable your sever is the main source of the sync problem you're experiencing, then.

To be sure of this, go to this website: https://portal.office.com/servicestatus, and check to see if there are any particular outages or perhaps interruptions in the service.

Be mindful of this too: If you can easily open and see the notebook in OneNote Online, but you're unable to see any changes, it just means the information is yet to sync. It's easy to verify the sync status of particular errors. Follow these steps:

1. Click on the purple "Show Notebooks" button.

When you hover your mouse cursor over the warning triangle you see adjacent to the name of any notebook listed, an error code will be displayed in the tooltip. Make a mental note of this error or jot it down.

Use the internet to find out more about the error code and what it entails. Look for documentation about it and other similar issues. If you're not comfortable with tampering with too many settings in your OneNote or you lack the time to troubleshoot the problem further, contact the professionals at the OneNote product team and let them handle it from there.

The last option would be to complete a “repair” to your MS Office install. Please reach out to your IT Support staff if you are still having issues.