SaleTarget::getActiveUsers

public function getActiveUsers()
{
	$leftTimestamp = mktime(0, 0, 0, date('n') - 1, 1, date('Y'));
	$leftDate = Main\Type\DateTime::createFromTimestamp($leftTimestamp);

	$result = \Bitrix\Crm\DealTable::getList(array(
		'select' => array('ASSIGNED_BY_ID'),
		'filter' => array(
			'>=DATE_CREATE' => $leftDate,
		),
		'group' => array('ASSIGNED_BY_ID')
	));
	$ids = array();

	while ($row = $result->fetch())
	{
		$ids[] = $row['ASSIGNED_BY_ID'];
	}

	return $this->getUsers($ids);
}