When I set up a meeting in Outlook and want to share meeting notes, the attendees get a login screen for a Microsoft account after clicking on the link to the meeting notes. We are all O365-users w/ an organizational account.
Is there a way to bypass the MS login screen?
Does the OneNote file you're using live in OneDrive, or OneDrive for Business?
Are you working with external accounts? if yes there is no way to bypass if no something else is going on.
OneDrive for Business.