818.41

<?
function OnIBlockElementUpdate(&$arFields)
{
    if (($arFields['IBLOCK_ID'] == 2 && !CCatalogSKU::IsExistOffers($arFields['ID'], $arFields['IBLOCK_ID'])) || $arFields['IBLOCK_ID'] == 3) {
        $arPrice = CPrice::GetByID($arFields['PRODUCT_ID']);
        $ar_res = CCatalogProduct::GetByID($arFields['ID']);

        if ($ar_res['QUANTITY'] == 0 && $arPrice['PRICE'] > 0) {

          if ($arPrice['TIMESTAMP_X'] == 0) {

                $delivery_expected = ($arFields['IBLOCK_ID'] == '2') ? '23' : '33';
                $porduct_state = ($arFields['IBLOCK_ID'] == '2') ? '60' : '92';

                $arFields['PROPERTY_VALUES'][$porduct_state] = [0 => ["VALUE" => $delivery_expected]];
          }
        }

            if ($ar_res['QUANTITY'] == 0 && $arPrice['PRICE'] > 0) {

                if ($arPrice['TIMESTAMP_X'] == false) {

                    $unavailable = ($arFields['IBLOCK_ID'] == '2') ? '22' : '33';
                    $porduct_state = ($arFields['IBLOCK_ID'] == '2') ? '60' : '92';

                    $arFields['PROPERTY_VALUES'][$porduct_state] = [0 => ["VALUE" => $unavailable]];
                }
            }

            if ($ar_res['QUANTITY'] == 0 && $arPrice['PRICE'] == 0) {


                $discontinued = ($arFields['IBLOCK_ID'] == '2') ? '36' : '33';
                $porduct_state = ($arFields['IBLOCK_ID'] == '2') ? '60' : '92';


                $arFields['PROPERTY_VALUES'][$porduct_state] = [0 => ["VALUE" => $discontinued]];

            }

        }
    }