When you host your OneNote notebooks on your SharePoint document library, you gain two important advantages: the ability to arrange and organize the notebooks in one location and the flexibility of controlling access to them.
How Can I Host My OneNote Notebooks on SharePoint?
It is usually best to give the responsibility for placing OneNote notebooks on SharePoint and controlling access to one person to avoid confusion. Once you have determined who will be responsible for this job that person can do several things with SharePoint: