Graphql - issue adding multiple configurable products to cart

[calin-ImDigital]

Preconditions (*)

1. magento 2.3.4

Steps to reproduce (*)

create a mutation for addConfigurableProductsToCart with multiple configurable products

Expected result (*)

1. products added to cart

Actual result (*)

{
"errors": [
{
"message": "You need to choose options for your item.",
"extensions": {
"category": "graphql-input"
},
"locations": [
{
"line": 25,
"column": 3
}
],
"path": [
"addConfigurableProductsToCart"
]
}
],
"data": {
"addConfigurableProductsToCart": null
}
}

Please provide Severity assessment for the Issue as Reporter. This information will help during Confirmation and Issue triage processes.

• 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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[nige-one]

I have the same issue. The problem is that in

magento2/app/code/Magento/ConfigurableProductGraphQl/Model/Options/Collection.php

Line 100 in 445b0f1

if (empty($this->productIds) || !empty($this->attributeMap)) {

the !empty($this->attributeMap) does not take into account the case of more then one Configurable Product's super attribute needs to be resolved.

[m2-assistant]

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[engcom-Bravo]

Hello @cdiacon-img

Thank you for your report.

Can you please clarify, are you trying to add multiple Products with options using one mutation, or you are trying to add one single configurable product with multiple options?
In any case, could you please provide a mutation example?

Thank you in advance

[calin-ImDigital]

Hi @engcom-Bravo

As I remember it was adding multiple products(cart items) with this mutation

mutation {
#   addConfigurableProductsToCart(
#     input: {
#       cart_id: "QZBii1Eu3vb5tOoGo94Rl9kcnquhc1Nf"
#       cart_items: [
#         {
#           data: {
#             quantity: 1
#             sku: "40012244"
#           },
#           parent_sku: "style-123"
            
#         },
#         {
#           parent_sku: "style-321"
#           data:{
#             quantity: 2
#             sku: "40023175"
#           }
          
#         }
#       ]
#     }
#   ) {
#     cart {
#       items {
#         id
#         product {
#           sku
#           stock_status
#         }
#         quantity
#       }
#     }
#   }
# }

[engcom-Bravo]

@cdiacon-img Thank you for the quick response.

This actually was the mutation we have tried to reproduce with.
The difference is that we are getting a different error

{
  "errors": [
    {
      "message": "Could not add the product with SKU Configurable2 to the shopping cart: Could not find specified product.",
      "extensions": {
        "category": "graphql-input"

This happens when we try to add two products. The Configurable2 itself is added to the Cart successfully.

[calin-ImDigital]

@engcom-Bravo

I am not sure why you are getting product not found but I guess you are hitting the condition of this test

testAddVariationFromAnotherConfigurableProductWithTheSameSuperAttributeToCart

But in my case it was getting attribute data from wrong product
You need to choose options for your item

This is how we patched at the moment, I hope this helps :

---
 vendor/magento/module-configurable-product-graph-ql/Model/Options/Collection.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/vendor/magento/module-configurable-product-graph-ql/Model/Options/Collection.php b/vendor/magento/module-configurable-product-graph-ql/Model/Options/Collection.php
index 36ee00d..c8bbe74 100644
--- a/vendor/magento/module-configurable-product-graph-ql/Model/Options/Collection.php
+++ b/vendor/magento/module-configurable-product-graph-ql/Model/Options/Collection.php
@@ -97,7 +97,7 @@ class Collection
      */
     private function fetch() : array
     {
-        if (empty($this->productIds) || !empty($this->attributeMap)) {
+        if (empty($this->productIds)) {
             return $this->attributeMap;
         }

--