diff --git a/vendor/magento/module-inventory-export-stock/Model/Api/SearchCriteria/FilterProcessor/InventoryStockFilter.php b/vendor/magento/module-inventory-export-stock/Model/Api/SearchCriteria/FilterProcessor/InventoryStockFilter.php
new file mode 100644
index 000000000000..3f57af5ebde6
--- /dev/null
+++ b/vendor/magento/module-inventory-export-stock/Model/Api/SearchCriteria/FilterProcessor/InventoryStockFilter.php
@@ -0,0 +1,68 @@
+<?php
+/**
+ * Copyright 2025 Adobe
+ * All Rights Reserved.
+ */
+declare(strict_types=1);
+
+namespace Magento\InventoryExportStock\Model\Api\SearchCriteria\FilterProcessor;
+
+use Magento\CatalogInventory\Model\Stock;
+use Magento\Framework\Api\Filter;
+use Magento\Framework\Api\SearchCriteria\CollectionProcessor\FilterProcessor\CustomFilterInterface;
+use Magento\Framework\App\ResourceConnection;
+use Magento\Framework\Data\Collection\AbstractDb;
+use Magento\CatalogInventory\Api\StockConfigurationInterface;
+
+/**
+ * Applies inventory stock filtering by joining MSI tables and restricting by stock_id.
+ */
+class InventoryStockFilter implements CustomFilterInterface
+{
+    /**
+     * @param ResourceConnection $resourceConnection
+     * @param StockConfigurationInterface $stockConfiguration
+     */
+    public function __construct(
+        private readonly ResourceConnection          $resourceConnection,
+        private readonly StockConfigurationInterface $stockConfiguration
+    ) {
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function apply(Filter $filter, AbstractDb $collection): bool
+    {
+        $stockId = (int)$filter->getValue();
+        $select = $collection->getSelect();
+
+        $notAllowedProductTypes = array_keys(
+            array_filter(
+                $this->stockConfiguration->getIsQtyTypeIds(),
+                fn($allowed) => $allowed === false
+            )
+        );
+
+        $select->joinLeft(
+            ['inventory_source_item' => $this->resourceConnection->getTableName('inventory_source_item')],
+            'inventory_source_item.sku = e.sku',
+            []
+        )->joinLeft(
+            ['stock_source_link' => $this->resourceConnection->getTableName('inventory_source_stock_link')],
+            'stock_source_link.source_code = inventory_source_item.source_code',
+            []
+        )->where(
+            'stock_source_link.stock_id = ?',
+            $stockId
+        )->orWhere(
+            'e.type_id IN (?)',
+            $notAllowedProductTypes
+        );
+
+        // Prevent duplicates when a product has multiple source items in the same stock
+        $select->group('e.entity_id');
+
+        return true;
+    }
+}
diff --git a/vendor/magento/module-inventory-export-stock/Model/ExportStockSalableQtyBySalesChannel.php b/vendor/magento/module-inventory-export-stock/Model/ExportStockSalableQtyBySalesChannel.php
index 8fd7f5d93133..3a143fdb2384 100644
--- a/vendor/magento/module-inventory-export-stock/Model/ExportStockSalableQtyBySalesChannel.php
+++ b/vendor/magento/module-inventory-export-stock/Model/ExportStockSalableQtyBySalesChannel.php
@@ -8,14 +8,12 @@
 namespace Magento\InventoryExportStock\Model;
 
 use Magento\Catalog\Api\ProductRepositoryInterface;
+use Magento\Framework\Api\SearchCriteriaBuilder;
 use Magento\Framework\Api\SearchCriteriaInterface;
 use Magento\Framework\Api\SearchResultsInterface;
-use Magento\Framework\Exception\LocalizedException;
 use Magento\InventoryExportStockApi\Api\Data\ExportStockSalableQtySearchResultInterface;
 use Magento\InventoryExportStockApi\Api\Data\ExportStockSalableQtySearchResultInterfaceFactory;
 use Magento\InventoryExportStockApi\Api\ExportStockSalableQtyBySalesChannelInterface;
-use Magento\InventorySalesApi\Api\Data\SalesChannelInterface;
-use Magento\InventorySalesApi\Api\Data\SalesChannelInterfaceFactory;
 use Magento\InventorySalesApi\Api\GetStockBySalesChannelInterface;
 
 /**
@@ -44,29 +42,29 @@ class ExportStockSalableQtyBySalesChannel implements ExportStockSalableQtyBySale
     private $getStockBySalesChannel;
 
     /**
-     * @var SalesChannelInterfaceFactory
+     * @var SearchCriteriaBuilder
      */
-    private $salesChannelInterfaceFactory;
+    private $searchCriteriaBuilder;
 
     /**
      * @param ProductRepositoryInterface $productRepository
      * @param ExportStockSalableQtySearchResultInterfaceFactory $exportStockSalableQtySearchResultFactory
      * @param PreciseExportStockProcessor $preciseExportStockProcessor
      * @param GetStockBySalesChannelInterface $getStockBySalesChannel
-     * @param SalesChannelInterfaceFactory $salesChannelInterfaceFactory
+     * @param SearchCriteriaBuilder $searchCriteriaBuilder
      */
     public function __construct(
         ProductRepositoryInterface $productRepository,
         ExportStockSalableQtySearchResultInterfaceFactory $exportStockSalableQtySearchResultFactory,
         PreciseExportStockProcessor $preciseExportStockProcessor,
         GetStockBySalesChannelInterface $getStockBySalesChannel,
-        SalesChannelInterfaceFactory $salesChannelInterfaceFactory
+        SearchCriteriaBuilder $searchCriteriaBuilder
     ) {
         $this->productRepository = $productRepository;
         $this->exportStockSalableQtySearchResultFactory = $exportStockSalableQtySearchResultFactory;
         $this->preciseExportStockProcessor = $preciseExportStockProcessor;
         $this->getStockBySalesChannel = $getStockBySalesChannel;
-        $this->salesChannelInterfaceFactory = $salesChannelInterfaceFactory;
+        $this->searchCriteriaBuilder = $searchCriteriaBuilder;
     }
 
     /**
@@ -79,13 +77,29 @@ public function execute(
         \Magento\Framework\Api\SearchCriteriaInterface $searchCriteria
     ): ExportStockSalableQtySearchResultInterface {
         $stock = $this->getStockBySalesChannel->execute($salesChannel);
-        $productSearchResult = $this->getProducts($searchCriteria);
+        // Build a fresh SearchCriteria with original filters + our inventory filter
+        $builder = $this->searchCriteriaBuilder;
+        $builder->setCurrentPage($searchCriteria->getCurrentPage());
+        $builder->setPageSize($searchCriteria->getPageSize());
+        foreach ($searchCriteria->getFilterGroups() as $filterGroup) {
+            $builder->addFilters($filterGroup->getFilters());
+        }
+        foreach ($searchCriteria->getSortOrders() ?: [] as $sortOrder) {
+            $builder->addSortOrder($sortOrder);
+        }
+        // Add stock filter that our custom processor intercepts
+        $builder->addFilter('inventory_stock_id', $stock->getStockId(), 'eq');
+        $searchCriteriaWithInventory = $builder->create();
+
+        $productSearchResult = $this->getProducts($searchCriteriaWithInventory);
         $items = $this->preciseExportStockProcessor->execute($productSearchResult->getItems(), $stock->getStockId());
+
         /** @var ExportStockSalableQtySearchResultInterface $searchResult */
         $searchResult = $this->exportStockSalableQtySearchResultFactory->create();
-        $searchResult->setSearchCriteria($productSearchResult->getSearchCriteria());
+        $searchResult->setSearchCriteria($searchCriteria);
         $searchResult->setItems($items);
-        $searchResult->setTotalCount(count($items));
+        // Single-pass: total count comes from filtered collection getSize()
+        $searchResult->setTotalCount($productSearchResult->getTotalCount());
 
         return $searchResult;
     }
diff --git a/vendor/magento/module-inventory-export-stock/etc/di.xml b/vendor/magento/module-inventory-export-stock/etc/di.xml
index b51672dc9ca2..f688f06f572c 100644
--- a/vendor/magento/module-inventory-export-stock/etc/di.xml
+++ b/vendor/magento/module-inventory-export-stock/etc/di.xml
@@ -17,4 +17,13 @@
             <argument name="qtyForNotManageStock" xsi:type="null"/>
         </arguments>
     </type>
+
+    <!-- Extend product filter processor with inventory_stock_id custom filter -->
+    <virtualType name="Magento\Catalog\Model\Api\SearchCriteria\CollectionProcessor\ProductFilterProcessor" type="Magento\Eav\Model\Api\SearchCriteria\CollectionProcessor\FilterProcessor">
+        <arguments>
+            <argument name="customFilters" xsi:type="array">
+                <item name="inventory_stock_id" xsi:type="object">Magento\InventoryExportStock\Model\Api\SearchCriteria\FilterProcessor\InventoryStockFilter</item>
+            </argument>
+        </arguments>
+    </virtualType>
 </config>