Outlook for Mac Does Not Work on OS X 10.10 (Yosemite Public Beta)

Great news - I loaded Yosemite Beta 3 last night and Outlook now works perfectly once again. All I had to do was launch Outlook after loading Beta 3 and all is good!

Good luck!

 As I said, same here for dev preview 8 - look as though it was an Apple problem all along. Was having a minor window placement problem with Word that was also 'fixed' in **** 8.

Thanks to all who helped!

Clinton

This did not work for me either.  What did work is:

1.  Delete Main Identity (or just move out of your user Documents/Microsoft User Data folder)
2.  Reinstall Outlook 2011 (download from Office365 if you have it; which installs the most-current update)
3.  Add your account account again from scratch.  FYI - I was not able to get auto discovery to work.  So, I had to manually add my Office365 account back.  I got some random error that "Outlook 2011 requires Exchange Server 2007 SP1 Update Rollup 4 or later" which Office365 clearly complies with). Make sure you know your servers before deleting and reinstalling Outlook.  I managed to pull them from my laptop when auto discovery failed, as that is my main machine and I have not upgraded it to Yosemite yet.  

Once I reinstalled Outlook and added my accounts back, all is well.  I will also say one thing I tried that did NOT work.  I tried to just copy my main identity back after reinstalling Outlook.  However, while Outlook's main screen was visible before adding my Main Identity back, once I quite Outlook, added the MI back, and then  launched Outlook again, the main window was gone again.  So, it must be something with the way Outlook looks at the old main identity that is confusing it.  By adding my account back from scratch, the database could be built again under Yosemite and the fresh install of Outlook.  So, this means that if you have anything in your MI outside of an Exchange or IMAP account, you will lose it (or will need to try and import it from a backup or copy of your Main Identity).  I have not tried that, as all of my accounts are Exchange-based.  And, while it looks to me like a database problem, I have seen several people in these posts say to NOT rebuild an Exchange database in Outlook).  Just FYI.

Hope this helps.

Keith

That works for me - but just once. Restart my Mac and back to not working.

Hey, Jim.

Glad to see the sun is up on your side of the Planet.

Forum Users a rule! Plenty of talent out there without waiting for the a Developer Brains a Trust...

Solution (for Some)=

Copy Main Identity and Save as Copy. Delete Main Identity from Microsoft Identies folder. Close Application then Re-Boot. Delete Main Identity (again) then put original Main Identity ( the one you saved) back in the folder. Re-Boot (yes, again) then Open Outlook.

Many Users reporting this fixes everything for them.

P.S. This is why the Community Posts on a Forums, Jim. The rest sit back and wait for Developer UpDates!

as you guys say... Have a Good Day! :)

It’s a no-brainer that Microsoft will have to make Office compatible with Yosemite when it is released to the general public as a completed product. Until that time, users of Yosemite should report to Apple any problems with Microsoft Office or any other software they are using.

Developers can prepare updates to their software once Yosemite has been released in its final form. While Yosemite is beta, each update to Yosemite will have many changes. Developers will probably not release a new update for their products for each new build of Yosemite that comes along.