ACP2E-1975: GraphQL cannot add product with customizable option to cart

Author: AnujNehra

app/code/Magento/Quote/Model/Cart/AddProductsToCart.php

@@ -168,7 +168,7 @@ private function addItemToCart(Quote $cart, Data\CartItem $cartItem, int $cartIt
                 $cartItemPosition
             );
         } else {
-            $product = $this->getProductOptions($this->productReader->getProductBySku($sku));
+            $product = $this->productReader->getProductBySku($sku);
             if (!$product || !$product->isSaleable() || !$product->isAvailable()) {
                 $errors[] = $this->error->create(
                     __('Could not find a product with SKU "%sku"', ['sku' => $sku])->render(),
@@ -209,16 +209,4 @@ private function prepareErrorOutput(Quote $cart, array $errors = []): AddProduct
 
         return $output;
     }
-
-    /**
-     * Set options from product options collection
-     *
-     * @param ProductInterface|null $productItem
-     * @return ProductInterface|null
-     */
-    private function getProductOptions(ProductInterface|null $productItem): ?ProductInterface
-    {
-        $productItem?->setOptions($productItem->getProductOptionsCollection()->getItems());
-        return $productItem;
-    }
 }

app/code/Magento/Quote/Model/Cart/ProductReader.php

@@ -62,6 +62,7 @@ public function loadProducts(array $skus, int $storeId): void
         $this->productCollection->addFieldToFilter(ProductInterface::SKU, ['in' => $skus]);
         $this->productCollection->joinAttribute('status', 'catalog_product/status', 'entity_id', null, 'inner');
         $this->productCollection->joinAttribute('visibility', 'catalog_product/visibility', 'entity_id', null, 'inner');
+        $this->productCollection->addOptionsToResult();
         $this->productCollection->load();
         foreach ($this->productCollection->getItems() as $productItem) {
             $this->productsBySku[$productItem->getData(ProductInterface::SKU)] = $productItem;