CIBlockPropertyTools::modifyGetListParams

static function modifyGetListParams(
	array &$getListParams,
	string $propertyCode,
	array$propertyDescription
): void
{
	switch ($propertyCode)
	{
		case self::CODE_SKU_LINK:
			$getListParams['select'][] = 'XML_ID';
			$getListParams['select'][] = 'USER_TYPE';

			$getListParams['filter']['=LINK_IBLOCK_ID'] = $propertyDescription['LINK_IBLOCK_ID'];
			$getListParams['filter']['=PROPERTY_TYPE'] = IblockPropertyTable::TYPE_ELEMENT;
			$getListParams['filter']['=ACTIVE'] = 'Y';
			$getListParams['filter']['=MULTIPLE'] = 'N';
			break;
	}
}