Роман Грицук

\Bitrix\Main\Loader::includeModule("iblock");
$donateList = array(2698, 2699, 2700, 2705, 37155, 41371);

$IBLOCK_ID = 7;
$arSelect = Array("IBLOCK_SECTION_ID");
$arFilter = Array(
    "IBLOCK_ID" => $IBLOCK_ID,
    "ACTIVE" => "Y",
    "PROPERTY_TYPE" => $donateList
);

$res = CIBlockElement::GetList(array("IBLOCK_SECTION_ID" => "ASC"), $arFilter, ["IBLOCK_SECTION_ID"], false, $arSelect);
$blackListSections = [];
while ($arItem = $res->Fetch()) {
    $blackListSections[] = $arItem["IBLOCK_SECTION_ID"];
}

$users_group = \CIBlockSection::GetList(
    array(),
    array(
        "IBLOCK_ID" => $IBLOCK_ID,
        "!ID" => $blackListSections
    ),
    false,
    array("ID")
);
//и т.д.

"SHOW_404" => "Y",
"SEF_MODE" => "Y",
"SEF_FOLDER" => "/",
"SEF_URL_TEMPLATES" => array(
"sections" => "",
"section" => "#SECTION_CODE_PATH#/",
"element" => "#SECTION_CODE_PATH#/#ELEMENT_CODE#/",
"compare" => "compare/",
"smart_filter" => "#SECTION_CODE_PATH#/filter/#SMART_FILTER_PATH#/apply/",
)

array (
'CONDITION' => '#^/#',
'RULE' => '',
'ID' => 'bitrix:catalog',
'PATH' => '/strany/index.php',
'SORT' => 100,
),

CModule::IncludeModule("catalog");

$products = [537, 547];
$amount = \Bitrix\Catalog\StoreProductTable::getList([
	'filter' => [
		'PRODUCT_ID' => $products
	]
])->fetchAll();

print_r($amount);

• статистику
  
• поисковый индекс
  
• журнал событий
  

$el = new CIBlockElement;

$PROP = array();
$PROP["COLOR"] = "Белый"; 
$PROP["COUNT"] = 38;

$arLoadProductArray = Array(
  "PROPERTY_VALUES"=> $PROP,
  "NAME"           => "Элемент",
);

$PRODUCT_ID = 2; 
$res = $el->Update($PRODUCT_ID, $arLoadProductArray);

if ($ex = $APPLICATION->GetException()){
     \Bitrix\Main\Diag\Debug::dumpToFile($ex->GetString());
}

$product = array(
    'PRODUCT_ID' => $productId,
    'QUANTITY' => $quantity
);
/*@var $basketResult Bitrix\Main\Result*/
$basketResult = Catalog\Product\Basket::addProduct($product);
if (!$basketResult->isSuccess()) {
    \Bitrix\Main\Diag\Debug::dumpToFile(implode('; ', $basketResult->getErrorMessages()));
}