CCrmProduct::innerProductModify

static function innerProductModify(array $fields): bool
{
	$existProduct = false;
	$data = Catalog\Model\Product::getCacheItem($fields['ID'], true);
	if (!empty($data))
	{
		$existProduct = !empty($data['ID']);
	}
	unset($data);

	if (!$existProduct)
	{
		if (Catalog\Product\SystemField\ProductMapping::isAllowed())
		{
			$fieldName = Catalog\Product\SystemField\ProductMapping::getUserFieldBaseParam()['FIELD_NAME'];
			if (!array_key_exists($fieldName, $fields))
			{
				$userField = Catalog\Product\SystemField\ProductMapping::load();
				if (!empty($userField))
				{
					$value = (!empty($userField['SETTINGS']['DEFAULT_VALUE']) && is_array($userField['SETTINGS']['DEFAULT_VALUE'])
						? $userField['SETTINGS']['DEFAULT_VALUE']
						: null
					);
					if ($value === null)
					{
						/** @var Catalog\Product\SystemField\Type\HighloadBlock $className */
						$className = Catalog\Product\SystemField\ProductMapping::getTypeId();

						$list = $className::getIdByXmlId(
							$userField['SETTINGS']['HLBLOCK_ID'],
							[Catalog\Product\SystemField\ProductMapping::MAP_LANDING]
						);
						if (isset($list[Catalog\Product\SystemField\ProductMapping::MAP_LANDING]))
						{
							$value = [
								$list[Catalog\Product\SystemField\ProductMapping::MAP_LANDING],
							];
						}
					}
					if ($value !== null)
					{
						$fields[$fieldName] = $value;
					}
				}
			}
		}
	}

	$result = $existProduct
		? Catalog\Model\Product::update($fields['ID'], $fields)
		: Catalog\Model\Product::add($fields)
	;
	$success = $result->isSuccess();
	if (!$success)
	{
		self::$LAST_ERROR = implode(' ', $result->getErrorMessages());
	}
	unset($result);

	return $success;
}