BuddyPress.org

Hi,
Would someone be kind enough to help me with changing a buddypress error message? (wordpress 4.9.8, buddypress 3.1.0)

I am restricting private messaging to user’s friends/connections. Currently, the error message returned when sending a private message to someone not in your network is “Message not sent. Please try again.” which doesn’t make sense. I would like it to say something like, “Sorry, you can only send a private message to connections in your network.” How might I change this error message?

I have been using the following code in child functions to restrict private messaging:

// if not site admin, restrict PMs to friends
function pp_check_message_recipients( $message_info ) {

//  site admins are not restricted
if ( is_super_admin() )
return $message_info;

$recipients = $message_info->recipients;

$friend_ids = friends_get_friend_user_ids( bp_displayed_user_id() ); 

$nf = 0; 

foreach ( $recipients as $key => $recipient ) {

if ( ! in_array( $recipient->user_id, $friend_ids ) ) 
$nf++;

}

// if any recipients are not friends, remove everyone from the recipient's list
if (  $nf > 0 ) 
unset( $message_info->recipients );

return $message_info;
}
add_action( 'messages_message_before_save', 'pp_check_message_recipients' );