Office 365: Cannot login to Lync Online IM thru Exchange Online OWA!!
Posted by Brajesh Panda on February 10, 2014
Recently I moved my account to Lync Online. While testing different features noticed, I cannot login to Lync IM thru Exchange Online’s OWA. By the way my mailbox is also in Exchange Online.
Here is a technet article for that; http://technet.microsoft.com/en-us/library/hh533880.aspx
We need to have hosting provider for exchange online integration. After I created that, I am able to login & able to chat with others. Make sure you have switch on pop-up in your browser 😉