you might notice some features aren't available because isn't using skype for business

[sperezalutiiq]

Can anyone let me know why suddenly users in my organization are seeing this message?

you might notice some features aren't available because isn't using skype for business

[#2]

Some of my users started seeing this yesterday as well. We are in Islands mode right now.

[#3]

We started seeing this yesterday too.   Even when the users are Skype4B to Skype4B.   We are also in Islands mode.  I don't see any announcements. 

[#4]

@sperezalutiiq Same here, anyone find something out yet?

[#5]

same issue here after March updates. Has there been any feedback from Microsoft or anyone find a related patch that could have caused this?

[#6]

This could have a relation to the recent issues experienced

@sperezalutiiq