I ran in to this issue where Outlook 2016 for OSX said it required to be activated. Very annoying as I don’t have a 365 account and that is what it requires before you can use it. It seems that this problem was caused by the fact that I used an older version of the preview/beta in the past. It can simply be solved be taking the following steps:
How To Activate Office 2016
So, I have an issue with a client's workstation. I have installed and reinstalled Office 2016 Pro Plus twice, all because every time Windows, and by extension Office, updates, it de-activates and cannot be re-activate it.
Office 2016 For Mac Keeps Asking To Activate Password
- Open Terminal
- Type: defaults delete com.microsoft.Outlook
- Type: killall cfprefsd
- Exit the Terminal session and launch Outlook
Office 365 keeps prompting for login credentials within Mac OSX? I came across a problem where a client of mine had bought and installed Office Suite 2016 she than upgraded to Office 365 Business Premium. Activate Office 365 versions of Office for Mac. If your organization has an Office 365 (or Microsoft 365) plan, make sure you assign each user a license for Office before you deploy Office for Mac to your users. If you don't assign a user a license, you can still deploy Office for Mac to that user, but the user won't be able to activate and use Office. Steps to Fix Outlook 2011 For Mac Keeps Asking Password of Office 365 Account. If the Keychain Access program is corrupted, then whenever the Outlook user is trying to connect with O365 on Mac platform, the password problem arises. As a result, Outlook 2016 for Mac keeps asking for password of Office 365 account. In the top menu bar select Finder Applications and scroll down to the Microsoft Office apps. Open any Office app, like Microsoft Word and in the What's New box that opens, select Get Started. On the Sign in to activate Office screen, select Sign in.
This basically deletes all the current settings for Outlook and wipes the cache. Now you can enter your details again and it will all work as expected.