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This could happen when bundled products and simple products are mixed in the order.
To solve this, override the Invoiceservice.php from vendor/magento/module-sales/Model/Service/InvoiceService.php and change the below functions codes.
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public function prepareInvoice(Order $order, array $qtys = []) { $isQtysEmpty = empty($qtys); $invoice = $this->orderConverter->toInvoice($order); $totalQty = 0; $qtys = $this->prepareItemsQty($order, $qtys); foreach ($order->getAllItems() as $orderItem) { if (!$this->_canInvoiceItem($orderItem, $qtys)) { continue; } if (isset($qtys[$orderItem->getId()])) { $qty = (double) $qtys[$orderItem->getId()]; } elseif ($orderItem->isDummy()) { $qty = $orderItem->getQtyOrdered() ? $orderItem->getQtyOrdered() : 1; } elseif ($isQtysEmpty) { $qty = $orderItem->getQtyToInvoice(); } else { $qty = 0; } $item = $this->orderConverter->itemToInvoiceItem($orderItem); $this->setInvoiceItemQuantity($item, $qty); $invoice->addItem($item); $totalQty += $qty; } $invoice->setTotalQty($totalQty); $invoice->collectTotals(); $order->getInvoiceCollection()->addItem($invoice); return $invoice; } |
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private function prepareItemsQty(Order $order, array $qtys = []) { foreach ($order->getAllItems() as $orderItem) { if (isset($qtys[$orderItem->getId()])) { if ($orderItem->isDummy() && $orderItem->getHasChildren()) { $qtys = $this->prepareItemQty($orderItem, $qtys); } } else { if (isset($qtys[$orderItem->getParentItemId()])) { $qtys[$orderItem->getId()] = $qtys[$orderItem->getParentItemId()]; } } } return $qtys; } |
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private function prepareItemQty(\Magento\Sales\Api\Data\OrderItemInterface $orderItem, &$qtys) { /** @var OrderItemInterface $childOrderItem */ foreach ($orderItem->getChildrenItems() as $childOrderItem) { if (!isset($qtys[$childOrderItem->getItemId()])) { $productOptions = $childOrderItem->getProductOptions(); if (isset($productOptions['bundle_selection_attributes'])) { $bundleSelectionAttributes = $this->serializer ->unserialize($productOptions['bundle_selection_attributes']); $qtys[$childOrderItem->getItemId()] = $bundleSelectionAttributes['qty'] * $qtys[$orderItem->getItemId()]; } } } return $qtys; } |
Once the changes will go live, the customer will have a complete invoice. None items will be missed.
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