BuddyPress.org

Hi, I have made a little “warning panel” and I want to send a message automatically that notifies the infraction to the user.
For now, when it happens, I do this operation.

Insert into wp_bp_messages_messages (parameters)
Insert into wp_bp_messages_recipients (parameters) -> for who sends
Insert into wp_bp_messages_recipients (parameters) -> for who receives
Insert into wp_bp_messages_recipients (parameters)

I have two questions:
The first it is about thread_id parameter: I just set it as last_thread_id +1. I know it is sloopy and probably duplicates conversation between users and ADMIN. I do not think that would be a problem, wouldn’t it?

The second is about, am I missing something? Because I found that if I send a message this way to the ADMIN, for tests, it is not notified in his mail, but other messages do.
So ideas?

Regards.