CAllCrmInvoice::CheckFieldsUpdate

public function CheckFieldsUpdate(&$arFields, $ID = false)
{
	/** @global CUserTypeManager $USER_FIELD_MANAGER */
	/** @global CMain $APPLICATION */
	global $APPLICATION, $USER_FIELD_MANAGER;

	$this->LAST_ERROR = '';

	if (isset($arFields['ORDER_TOPIC']) && empty($arFields['ORDER_TOPIC']))
		$this->LAST_ERROR .= GetMessage('CRM_ERROR_FIELD_INCORRECT', array('%FIELD_NAME%' => GetMessage('CRM_FIELD_ORDER_TOPIC')))."
\n";

	CCrmEntityHelper::NormalizeUserFields($arFields, self::$sUFEntityID, $USER_FIELD_MANAGER, array('IS_NEW' => ($ID == false)));
	if(!$USER_FIELD_MANAGER->CheckFields(self::$sUFEntityID, $ID, $arFields))
	{
		$e = $APPLICATION->GetException();
		$this->LAST_ERROR .= $e->GetString();
	}

	if ($this->LAST_ERROR <> '')
		return false;

	return true;
}