Sometimes your credentials can get corrupted, causing OneNote to continually prompt you to enter your password. To clean this up, do the following:

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  1. Quit from all Mac Office Applications, except for OneNote
    Microsoft onenote for mac osx. Jan 26, 2015  OneNote requires you to use a (free) Microsoft account to create and maintain your notes. The notes are stored online, which. OneNote is Microsoft's answer to Evernote.
  2. In OneNote, sign out. This only logs you out, and all the notebooks will still be there.
  3. Quit OneNote.
  4. Launch 'Keychain Access' and search for all items that contain 'Office15'. There should be only a couple items, one for each account you have logged into.
    1. The name will be a long alpha-numeric code and the kind will start with “MicrosoftOffice15…”
  5. Delete these items. It is only deleting the authentication credentials, no data. Microsoft office equation editor mac. Once you sign in again, they will be re-created.
  6. Launch OneNote and sign into your accounts.

Since all the office apps share the credentials (Word/Excel/PowerPoint) you will have to sign in again with those apps as well.

To clear your Office credentials for iOS

Mac

Sometimes your credentials can get corrupted, causing OneNote to continually prompt you to enter your password. To clean this up, do the following:

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  1. If you have other Office apps installed (Word, Excel, PowerPoint, etc), make sure you have updated this to be the latest version. Since we share the same Office identity, if there is a bug in any of those apps, it can corrupt the identity.
  2. Clearing your credentials often helps. To do that, follow these steps.
    1. Go to iOS Settings > OneNote > Reset OneNote > Delete Sign-In Credentials and turn the toggle on.
    2. Make sure OneNote is not running. (Double tap the home screen to see all running apps and swipe up on OneNote to close it.)
    3. Re-open OneNote and sign in again.