Magento REST API returns not existing SKU when custom option was set

[ihor-sviziev]

Preconditions (*)

1. Magento 2.3.2 or 2.3-develop

Steps to reproduce (*)

1. Create simple product with one custom option type drop-down with name "Color", and values "Red", "Green", also fill up SKU field for customizable options
   
   

2. Create Configurable product with one custom option type drop-down with name "Color", and values "Red", "Green", also fill up SKU field for customizable options
   
   
   

3. Go to Frontend, add to cart two these products

4. Get information about quote via REST API

5. Go to checkout, execute following JS in developer console, see result:

require(['mage/storage'], function(storage) {
	storage.get('/rest/default/V1/guest-carts/' + window.checkoutConfig.quoteData.entity_id + '/')
	.done(function(result) {
		console.log(result.items);
	});
});

Expected result (*)

1. You should have an ability to get real product SKU, it's useful for different types of integrations

sku: "Simple-1"
sku: "Configurable 2-a"

Actual result (*)

1. You're having not real product SKU, but added all custom options

sku: "Simple-1-Red"
sku: "Configurable 2-a-Red"

[m2-assistant]

Hi @ihor-sviziev. Thank you for your report.
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@ihor-sviziev do you confirm that you were able to reproduce the issue on vanilla Magento instance following steps to reproduce?

• yes
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[ihor-sviziev]

@magento give me 2.3-develop instance

[magento-engcom-team]

Hi @ihor-sviziev. Thank you for your request. I'm working on Magento 2.3-develop instance for you

[magento-engcom-team]

Hi @ihor-sviziev, here is your Magento instance.
Admin access: https://i-25461-2-3-develop.instances.magento-community.engineering/admin
Login: admin Password: 123123q
Instance will be terminated in up to 3 hours.

[m2-assistant]

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[magento-engcom-team]

✅ Confirmed by @engcom-Charlie
Thank you for verifying the issue. Based on the provided information internal tickets MC-22785 were created

Issue Available: @engcom-Charlie, You will be automatically unassigned. Contributors/Maintainers can claim this issue to continue. To reclaim and continue work, reassign the ticket to yourself.

[ihor-sviziev]

Hi,

As we discussed in Slack - this issue appears only when "sku" field is shown.

The result SKU is following:

<original_product_sku>-<sku_option_1>-<sku_option_2>

There is an issue not in the SKU itself, the issue that we can't really find product in the catalog by this SKU, (<original_product_sku> in this case).

I see there at least two possible solutions:

1. Drop functionality that appends option SKUs (backward incompatible change)
   This probably it's backward compatible change, but I'm not sure if this case is valid at all.

2. Create new field that will contains only real product SKU (backward compatible change)
   Something like original_sku=<original_product_sku>

I think there might be more possible cases to fix this issue.

@akaplya could you review this issue as architect and decide what is expected result in this case?