public function getFallbackIds()
    {
        $fallbackIds = $this->scopeConfig->getValue(
            self::XML_PATH_FALLBACK_PRODUCTS_ITEMS
        );
        if ($fallbackIds) {
            return explode(
                ',',
                $this->scopeConfig->getValue(
                    self::XML_PATH_FALLBACK_PRODUCTS_ITEMS
                )
            );
        }

        return [];
    }