Hi Miss,
If the notebooks are stored in OneDrive for Business, you can try to create a folder which
is used to store the shared notebooks, and set alert for the folder.
Please go to OneDrive for Business>click
Return to classic OneDrive in the lower left corner>click Settings in the top navigation bar>turn Ribbon On>choose the folder you save notebooks in>FILES>Alert ME>Set alert on this document.
In the Delivery Method section, choose
E-mail.
For more detailed information, please refer to this article:
Create an alert
to get notified when a file or folder changes in SharePoint
We'd like to explain that for OneNote on Windows which notebooks are stored in OneDrive for Business, it is not available to set email notifications for the shared notebooks.
We welcome and suggest you submit your feedback to OneNote UserVoice as this is the best way to let related team hear your voice and make our products better for you and others.
Regarding the link you mentioned to set email notifications, the settings is used for the notebooks which are stored in personal OneDrive. You need to use a Microsoft account to sign in to the link and set the OneNote notifications.
If you have any questions about the email notifications for the notebooks stored in personal OneDrive, we suggest you post the question in the category
OneDrive>Working with files and folders on OneDrive>Sharing files and folders>OneDrive in Windows 8 or Previous. Engineers there will help to troubleshoot the issue.
Your understanding will be highly appreciated.
Regards,
Tina
[Updated by Tina Chen MSFT, November 4th, 12:58 AM (UTC)]