diff --git a/src/Actions/UpdateMsiStock.php b/src/Actions/UpdateMsiStock.php
index 37fce3a..794850a 100644
--- a/src/Actions/UpdateMsiStock.php
+++ b/src/Actions/UpdateMsiStock.php
@@ -23,6 +23,10 @@ public function update(MagentoStock $model): void
 
         $availableSources = $this->getAvailableSources();
 
+        if ($model->msi_stock === null) {
+            return;
+        }
+
         foreach ($model->msi_stock as $location => $quantity) {
             if (! in_array($location, $availableSources)) {
                 continue;
diff --git a/src/Models/MagentoStock.php b/src/Models/MagentoStock.php
index d5e4a01..1a0dd85 100644
--- a/src/Models/MagentoStock.php
+++ b/src/Models/MagentoStock.php
@@ -18,8 +18,8 @@
  * @property bool $backorders
  * @property bool $magento_backorders_enabled
  * @property int $quantity
- * @property array $msi_stock
- * @property array $msi_status
+ * @property ?array $msi_stock
+ * @property ?array $msi_status
  * @property bool $retrieve
  * @property bool $update
  * @property ?Carbon $last_retrieved
diff --git a/tests/Actions/UpdateMsiStockTest.php b/tests/Actions/UpdateMsiStockTest.php
index c6be6f1..5da3865 100644
--- a/tests/Actions/UpdateMsiStockTest.php
+++ b/tests/Actions/UpdateMsiStockTest.php
@@ -135,6 +135,32 @@ function (Request $request) use ($expectedPayload) {
         Event::assertDispatched(StockUpdatedEvent::class);
     }
 
+    public function test_it_stops_when_stockdata_is_empty(): void
+    {
+        Http::fake([
+            '*/rest/all/V1/inventory/source-items*' => Http::response(),
+        ]);
+
+        /** @var UpdateMsiStock $action */
+        $action = app(UpdateMsiStock::class);
+
+        /** @var MagentoStock $stock */
+        $stock = MagentoStock::query()->first();
+
+        $stock->msi_stock = null;
+
+        $stock->msi_status = null;
+
+        $action->update($stock);
+
+        Event::assertNotDispatched(StockUpdatedEvent::class);
+
+        Http::assertNotSent(function (Request $request): bool {
+            return $request->method() === 'POST' &&
+                $request->url() === 'http://magento.test/rest/all/async/V1/inventory/source-items';
+        });
+    }
+
     public function test_it_logs_error(): void
     {
         Http::fake([