Don't skip row on import if image not available.

app/code/Magento/CatalogImportExport/Model/Import/Product.php

@@ -1247,6 +1247,7 @@ protected function _prepareRowForDb(array $rowData)
      * @SuppressWarnings(PHPMD.CyclomaticComplexity)
      * @SuppressWarnings(PHPMD.NPathComplexity)
      * @SuppressWarnings(PHPMD.ExcessiveMethodLength)
+     * phpcs:disable Generic.Metrics.NestingLevel
      */
     protected function _saveLinks()
     {
@@ -1256,7 +1257,7 @@ protected function _saveLinks()
         $nextLinkId = $this->_resourceHelper->getNextAutoincrement($mainTable);
 
         // pre-load 'position' attributes ID for each link type once
-        foreach ($this->_linkNameToId as $linkName => $linkId) {
+        foreach ($this->_linkNameToId as $linkId) {
             $select = $this->_connection->select()->from(
                 $resource->getTable('catalog_product_link_attribute'),
                 ['id' => 'product_link_attribute_id']
@@ -1374,6 +1375,7 @@ protected function _saveLinks()
         }
         return $this;
     }
+    // phpcs:enable
 
     /**
      * Save product attributes.
@@ -1608,6 +1610,7 @@ public function getImagesFromRow(array $rowData)
      * @SuppressWarnings(PHPMD.ExcessiveMethodLength)
      * @SuppressWarnings(PHPMD.UnusedLocalVariable)
      * @throws LocalizedException
+     * phpcs:disable Generic.Metrics.NestingLevel
      */
     protected function _saveProducts()
     {
@@ -1798,7 +1801,13 @@ protected function _saveProducts()
                                 $uploadedImages[$columnImage] = $uploadedFile;
                             } else {
                                 unset($rowData[$column]);
-                                $this->skipRow($rowNum, ValidatorInterface::ERROR_MEDIA_URL_NOT_ACCESSIBLE);
+                                $this->addRowError(
+                                    ValidatorInterface::ERROR_MEDIA_URL_NOT_ACCESSIBLE,
+                                    $rowNum,
+                                    null,
+                                    null,
+                                    ProcessingError::ERROR_LEVEL_NOT_CRITICAL
+                                );
                             }
                         } else {
                             $uploadedFile = $uploadedImages[$columnImage];
@@ -1974,6 +1983,7 @@ protected function _saveProducts()
 
         return $this;
     }
+    // phpcs:enable
 
     /**
      * Prepare array with image states (visible or hidden from product page)

dev/tests/integration/testsuite/Magento/CatalogImportExport/Model/Import/ProductTest.php

@@ -34,6 +34,7 @@
  * @magentoDataFixtureBeforeTransaction Magento/Catalog/_files/enable_catalog_product_reindex_schedule.php
  * @SuppressWarnings(PHPMD.CouplingBetweenObjects)
  * @SuppressWarnings(PHPMD.ExcessiveClassComplexity)
+ * phpcs:disable Generic.PHP.NoSilencedErrors, Generic.Metrics.NestingLevel, Magento2.Functions.StaticFunction
  */
 class ProductTest extends \Magento\TestFramework\Indexer\TestCase
 {
@@ -1590,6 +1591,45 @@ public function testAddUpdateProductWithInvalidUrlKeys() : void
         }
     }
 
+    /**
+     * Make sure the non existing image in the csv file won't erase the qty key of the existing products.
+     *
+     * @magentoDataFixture Magento/CatalogImportExport/Model/Import/_files/products_to_import_with_non_existing_image.csv
+     * @magentoDbIsolation enabled
+     * @magentoAppIsolation enabled
+     */
+    public function testImportWithNonExistingImage()
+    {
+        $products = [
+            'simple_new' => 100,
+        ];
+        $filesystem = $this->objectManager->create(\Magento\Framework\Filesystem::class);
+        $directory = $filesystem->getDirectoryWrite(DirectoryList::ROOT);
+        $source = $this->objectManager->create(
+            \Magento\ImportExport\Model\Import\Source\Csv::class,
+            [
+                'file' => __DIR__ . '/_files/products_to_import_with_non_existing_image.csv',
+                'directory' => $directory
+            ]
+        );
+
+        $errors = $this->_model->setParameters(
+            ['behavior' => \Magento\ImportExport\Model\Import::BEHAVIOR_APPEND, 'entity' => 'catalog_product']
+        )
+            ->setSource($source)
+            ->validateData();
+
+        $this->assertTrue($errors->getErrorsCount() == 0);
+        $this->_model->importData();
+
+        $productRepository = $this->objectManager->create(\Magento\Catalog\Api\ProductRepositoryInterface::class);
+        foreach ($products as $productSku => $productQty) {
+            $product = $productRepository->get($productSku);
+            $stockItem = $product->getExtensionAttributes()->getStockItem();
+            $this->assertEquals($productQty, $stockItem->getQty());
+        }
+    }
+
     /**
      * @magentoDataFixture Magento/Catalog/_files/product_simple_with_url_key.php
      * @magentoDbIsolation disabled
@@ -1781,6 +1821,7 @@ function (ProductInterface $item) {
                 if ($product->getId()) {
                     $productRepository->delete($product);
                 }
+                // phpcs:ignore Magento2.CodeAnalysis.EmptyBlock
             } catch (\Magento\Framework\Exception\NoSuchEntityException $e) {
                 //Product already removed
             }

dev/tests/integration/testsuite/Magento/CatalogImportExport/Model/Import/_files/products_to_import_with_non_existing_image.csv

@@ -0,0 +1,2 @@
+sku,store_view_code,attribute_set_code,product_type,categories,product_websites,name,description,short_description,weight,product_online,tax_class_name,visibility,price,special_price,special_price_from_date,special_price_to_date,url_key,meta_title,meta_keywords,meta_description,base_image,base_image_label,small_image,small_image_label,thumbnail_image,thumbnail_image_label,swatch_image,swatch_image_label1,created_at,updated_at,new_from_date,new_to_date,display_product_options_in,map_price,msrp_price,map_enabled,gift_message_available,custom_design,custom_design_from,custom_design_to,custom_layout_update,page_layout,product_options_container,msrp_display_actual_price_type,country_of_manufacture,additional_attributes,qty,out_of_stock_qty,use_config_min_qty,is_qty_decimal,allow_backorders,use_config_backorders,min_cart_qty,use_config_min_sale_qty,max_cart_qty,use_config_max_sale_qty,is_in_stock,notify_on_stock_below,use_config_notify_stock_qty,manage_stock,use_config_manage_stock,use_config_qty_increments,qty_increments,use_config_enable_qty_inc,enable_qty_increments,is_decimal_divided,website_id,related_skus,crosssell_skus,upsell_skus,additional_images,additional_image_labels,hide_from_product_page,custom_options,bundle_price_type,bundle_sku_type,bundle_price_view,bundle_weight_type,bundle_values,associated_skus
+simple_new,,Default,simple,,base,New Product,,,,1,Taxable Goods,"Catalog, Search",10,,,,new-product,New Product,New Product,New Product ,/no/exists/image/magento_image.jpg,Image Label,magento_small_image.jpg,Small Image Label,magento_thumbnail.jpg,Thumbnail Label,magento_image.jpg,Image Label,10/20/15 07:05,10/20/15 07:05,,,Block after Info Column,,,,,,,,,,,,,"has_options=1,quantity_and_stock_status=In Stock,required_options=1",100,0,1,0,0,1,1,1,10000,1,1,1,1,1,0,1,1,0,0,0,1,,,,"magento_additional_image_one.jpg, magento_additional_image_two.jpg","Additional Image Label One,Additional Image Label Two",,,,,,,,