I do not know if that helps but that's what I found in the help:
Is there a way to invite more than one person to a chat?
<http://developer.pidgin.im/wiki/Protocol%20Specific%20Questions#Isthereawaytoinvitemorethanonepersontoachat>

Yes, but this is a case where our design differs from the official clients.
In the MSN world, there is no distinction between an IM session and a chat.
Within libpurple and Pidgin, however, there is. If you start an IM with one
user, then you cannot invite someone else to the conversation. If, however,
you right-click the buddy and select Initiate Chat, then you can invite as
many people to the chat as you want using Conversation->Invite.
Unfortunately, Pidgin does not yet provide a convenient way to select
multiple buddies at once to invite.

http://developer.pidgin.im/wiki/Protocol%20Specific%20Questions#Isthereawaytoinvitemorethanonepersontoachat

So you may can use that Chat instead of IM to send those important pizza
delivery notifications :-)

Tamas



On Fri, Oct 16, 2009 at 11:56 PM, Vitaliy <piclist@maksimov.org> wrote:

> Marcel Birthelmer wrote:
> >> So, first question: is it possible to send the same message to multiple
> >> recepients? We use this functionality (in Messenger) at work for
> >> impromptu
> >> meetings and announcements ("Pizza is here!", etc).
> >
> > I think you can do a "chat" type thing where a bunch of people are in
> > the same chat together. But I don't think it supports sending one
> > message to a bunch of different people at the same time.
>
> Hm, that sucks... I'm going to have to continue running Live Messenger,
> then.
>
> Vitaliy
>
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