Can't invite due to being "somewhere else"?

Sometimes when I go to invite another player to take part in an action, &quotShow contacts that I can’t invite&quot says that one or more players are &quotsomewhere else&quot. What does that mean?

It means they are in an area (such as the Zee, an island, etc) where they are not able to receive social actions from other players.[li]
edited by Sarsmos on 8/13/2015

There are a few places like that. Being invited to a certain dinner party is one, having allowed Menaces to get too high is another.
Zailing is a big one, as it takes a whole bunch of actions to get there, do what you want to do, and then return to London afterwards.
edited by Kittenpox on 8/13/2015