src/Upwork/API/Routers/Messages.php
public function sendMessageToRoom($company, $roomId, $params = array())
    {
        ApiDebug::p(__FUNCTION__);

        $response = $this->_client->post('/messages/v3/' . $company . '/rooms/' . $roomId . '/stories', $params);
        ApiDebug::p('received data', $response);

        return $response;
    }
public function sendMessageToRoom($company, $roomId, $params = array())
    {
        ApiDebug::p(__FUNCTION__);

        $response = $this->_client->post('/messages/v3/' . $company . '/rooms/' . $roomId . '/stories', $params);
        ApiDebug::p('received data', $response);

        return $response;
    }
Send a message to a room

@param   string $company Company ID
@param	string $roomId Room ID
@param   array $params List of parameters
@access  public
@return  object