ProductNotFoundError example

        // product data was never detected and the product is not inside the data collection         if ($product !== null || $item->getDataTimestamp() !== null) {
            return;
        }

        if ($behavior->hasPermission(self::KEEP_INACTIVE_PRODUCT)) {
            return;
        }

        $cart->addErrors(new ProductNotFoundError($item->getLabel() ?: $item->getId()));

        $items->remove($item->getId());
    }

    private function validateParents(LineItem $item, CartDataCollection $data, LineItemCollection $items): void
    {
        $product = $data->get(
            $this->getDataKey((string) $item->getReferencedId())
        );

        // no data for enrich exists