A family of Microsoft products that enable users to capture, organize, and reuse notes electronically.
Hello Phila Hoopes, thanks for reaching out.
If the notebook is not listed on your Mac at all, the Sync Status steps won’t help yet.
In OneNote for Mac, open Show Notebook List, then select More Notebooks. If you see the notebook there, select it to open it. You can also open the notebook in OneNote for the web and try Open in OneNote from the top menu.
If neither option opens it on your Mac, is OneNote for Mac signed in with the same Microsoft account you’re using in the browser? Please let us know whether the notebook appears under More Notebooks, and what happens when you try Open in OneNote.