When customer is set for quote order is still a guest order

[Genaker]

magento2/app/code/Magento/Quote/Model/Quote.php

Lines 859 to 861 in a98a64a

	if ($this->_customer) {
	$this->setCustomerId($this->_customer->getId());
	}

if ($this->_customer) {
$this->setCustomerId($this->_customer->getId());
}

You need to change it to

if ($this->_customer) {
$this->setCustomerId($this->_customer->getId());
$this->setCustomerIsGuest(0);
}

or incapsulate this logic into setCustomerId() method

Additional Information:
This issue is caused when checking out from a guest cart programmatically, when you assign a customer to the cart before submitting it to place the order, the quote remains as guest even though a customer has been assigned.

[m2-assistant]

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[Genaker]

there is test cases:

$customer = $this->customerRepository->getById($customerId);

        $output->writeln('is order for guest : ' . $quote->getCustomerIsGuest());
        $output->writeln("Customer ID:" . $customer->getId());
        // Assign the customer to the quote
        $quote->assignCustomer($customer);
        $quote->setCustomerId($customer->getId());
        $output->writeln('is order for guest after assign customer and set customer ID : ' . $quote->getCustomerIsGuest());


        $output->writeln('is order for guest after set setCustomerIsGuest : ' . $quote->getCustomerIsGuest());

output 👍

the same issue for quote/cart or for order doesn't matte.
please fix this issue in the core.

[m2-assistant]

Hi @engcom-Dash. Thank you for working on this issue.
In order to make sure that issue has enough information and ready for development, please read and check the following instruction: 👇

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• 3. Add Area: XXXXX label to the ticket, indicating the functional areas it may be related to.
• 4. Verify that the issue is reproducible on 2.4-develop branch
     Details

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[m2-assistant]

Hi @engcom-November. Thank you for working on this issue.
In order to make sure that issue has enough information and ready for development, please read and check the following instruction: 👇

• 1. Verify that issue has all the required information. (Preconditions, Steps to reproduce, Expected result, Actual result).
• 2. Verify that issue has a meaningful description and provides enough information to reproduce the issue.
• 3. Add Area: XXXXX label to the ticket, indicating the functional areas it may be related to.
• 4. Verify that the issue is reproducible on 2.4-develop branch
  Details

  - Add the comment @magento give me 2.4-develop instance to deploy test instance on Magento infrastructure.
  - If the issue is reproducible on 2.4-develop branch, please, add the label Reproduced on 2.4.x.
  - If the issue is not reproducible, add your comment that issue is not reproducible and close the issue and stop verification process here!
• 5. Add label Issue: Confirmed once verification is complete.
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[engcom-November]

Hello @Genaker,

Thank you for the report and contribution!

Tried to verify this issue on 2.4-develop, but in our case it is not reproducible.
Signed in as a customer, and added the product to cart, but customer_is_guest was 0.

Please take a look at the screenshot below:

Please let us know if any preconditions are required for the issue to be reproduced, and also if we are missing anything.

Thank you.

[Genaker]

You should submit an order not through the front but by code: it is not a front issue

        $quoteMaskedHash = //Real cart with the items mask 
        $quoteId = $this->getQuoteIdFromMaskedHash($quoteMaskedHash);

        $customerId = //SomeCustomerID
        $quote = $this->quoteRepository->get($quoteId);
        $customer = $this->customerRepository->getById($customerId);

        // Assign the customer to the quote there quote must be not guest 
        $quote->assignCustomer($customer);

        $billingAddress = [
            'firstname' => 'John',
            'lastname' => 'Doe',
            'email' => 'test@test.com',
            'street' => '123 Main St',
            'city' => 'Anytown',
            'country_id' => 'US',
            'region' => 'NY',
            'postcode' => '12345',
            'telephone' => '1234567890',
            'save_in_address_book' => 0
        ];

        $quote->getBillingAddress()->addData($billingAddress);

        $shippingAddress = [
            'firstname' => 'John',
            'lastname' => 'Doe',
            'email' => 'test@test.com',
            'street' => '123 Main St',
            'city' => 'Anytown',
            'country_id' => 'US',
            'region' => 'NY',
            'postcode' => '12345',
            'telephone' => '1234567890',
            'save_in_address_book' => 0
        ];

        $quote->getShippingAddress()->addData($shippingAddress);

        $shippingAddress = $quote->getShippingAddress();
        $shippingAddress->setCollectShippingRates(true)
            ->collectShippingRates()
            ->setShippingMethod('freeshipping_freeshipping'); // For Free Shipping

        $quote->setPaymentMethod('checkmo'); // For Check / Money order
        $quote->setInventoryProcessed(false); // Prevents inventory decrement

        $quote->getPayment()->importData(['method' => 'checkmo']);

        // Attempt to save the quote and create an order from it
        $quote->collectTotals()->save();

        ///Quote is still guest 

[engcom-November]

Hello @Genaker,

Thank you for the quick response!

Verified this issue on 2.4-develop.
When checking out from a guest quote programmatically, after assigning a customer to the quote, customer_is_guest remains 1.

Please take a look at the screenshot below:

The value of customer_is_guest should have been 0, but it remains 1.
Hence confirming this issue.

Please find the custom module used to reproduce this issue.
I38540V.zip

Thank you.