[GraphQL] - addProductsToCart mutation doesn't work as expect with a given parent_sku

[Dnd-Mafer]

Preconditions and environment

• Magento 2.4.8
• Native M2 with Sample data installed

Steps to reproduce

• create an empty cart

mutation {
  createGuestCart {
      cart {
          id
      }
  }
}

• add a product by specifying parent_sku following the official doc

mutation {
  addProductsToCart(
    cartId: "LclKxxxxxxxxxxxxxxW"
    cartItems: [
      {
        quantity: 1
        parent_sku: "WSH12"
        sku: "WSH12-28-Green"
      }
    ]
  ) {
    cart {
      itemsV2 {
        items {
          id
          product {
            name
            sku
          }
          quantity
        }
        total_count
        page_info {
          page_size
          current_page
          total_pages
        }
      }
    }
    user_errors {
      code
      message
    }
  }
}

Expected result

{
  "data": {
    "addProductsToCart": {
      "cart": {
        "itemsV2": {
          "items": [
            {
              "id": "24",
              "product": {
                "name": "Erika Running Short",
                "sku": "WSH12"
              },
              "quantity": 1
            },
            {
              "id": "26",
              "product": {
                "name": "Erika Running Short-28-Green",
                "sku": "WSH12-28-Green"
              },
              "quantity": 1
            }
          ],
          "total_count": 2,
          "page_info": {
            "page_size": 20,
            "current_page": 1,
            "total_pages": 1
          }
        }
      },
      "user_errors": []
    }
  }
}

Actual result

{
  "data": {
    "addProductsToCart": {
      "cart": {
        "itemsV2": {
          "items": [
            {
              "id": "18",
              "product": {
                "name": "Erika Running Short-28-Green",
                "sku": "WSH12-28-Green"
              },
              "quantity": 1
            }
          ],
          "total_count": 1,
          "page_info": {
            "page_size": 20,
            "current_page": 1,
            "total_pages": 1
          }
        }
      },
      "user_errors": []
    }
  }
}

Additional information

When we use the other way it works as expected.

The main problem is the cart doesn't contain the configurable product which leads to issues.

Release note

[GraphQL] - fix addProductsToCart when specifying parent_sku to work as expected

Triage and priority

• Severity: S0 - Affects critical data or functionality and leaves users without workaround.
• Severity: S1 - Affects critical data or functionality and forces users to employ a workaround.
• Severity: S2 - Affects non-critical data or functionality and forces users to employ a workaround.
• Severity: S3 - Affects non-critical data or functionality and does not force users to employ a workaround.
• Severity: S4 - Affects aesthetics, professional look and feel, “quality” or “usability”.

[m2-assistant]

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[m2-assistant]

Hi @engcom-Bravo. Thank you for working on this issue.
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[engcom-Bravo]

Hi @Dnd-Mafer,

Thanks for your reporting and collaboration.

We have tried to reproduce the issue in Latest 2.4-develop instance and we are not able to reproduce and it seems to be an expected behaviour.Kindly refer the screenshots.

we can only add the child product of configurable product(variants) by selecting the configurable options and it is working fine with addproductstocart mutation.Could you please let us know if we are missing anything.

Thanks.

[Dnd-Mafer]

This is not what is the official documentation : https://developer.adobe.com/commerce/webapi/graphql/schema/cart/mutations/add-products/#specify-a-parent-and-a-child-sku

[engcom-Bravo]

Hi @Dnd-Mafer,

Thanks for your update.

We have tried to reproduce the issue in Latest 2.4-develop instance and we are able to reproduce the issue.Kindly refer the screenshots.

Hence Confirming the issue.

Thanks.