As of this week, Lync connectivity with Windows Live Messenger in Office 365 for professionals and small businesses (Plan P) is temporarily removed. During this temporary period, customers who use Lync with Office 365 for professionals and small businesses will not be able to use Messenger to see presence, send instant messages, or make video calls. They will, however, be able to see presence, send instant messages, or make video calls with other Lync users inside and outside their organizations.

We are working to address this issue and re-enable support for Lync-Messenger connectivity in Office 365 for professionals and small businesses in the coming months. We apologize for any inconvenience this may cause in the interim. For more information, see the Office 365 Technical Blog.