Fixed type error

CHANGELOG.md

@@ -3,7 +3,7 @@
 ## Unreleased
 
 - Fixed a bug where draft purchasables would show up on the Inventory page.
-- Fixed a PHP error that could occur when creating inventory transfers.
+- Fixed a PHP error that could occur when creating inventory transfers. ([#3696](https://github.com/craftcms/commerce/issues/3696))
 - Fixed a bug where the price was not formatted correctly according to the locale in the payment model on the Order Edit screens. ([#3789](https://github.com/craftcms/commerce/issues/3789))
 
 ## 5.2.7 - 2024-11

src/collections/UpdateInventoryLevelCollection.php

@@ -8,6 +8,7 @@
 namespace craft\commerce\collections;
 
 use craft\commerce\models\inventory\UpdateInventoryLevel;
+use craft\commerce\models\inventory\UpdateInventoryLevelInTransfer;
 use Illuminate\Support\Collection;
 
 /**
@@ -46,7 +47,7 @@ public static function make($items = [])
      */
     public function getPurchasables(): array
     {
-        return $this->map(function(UpdateInventoryLevel $updateInventoryLevel) {
+        return $this->map(function(UpdateInventoryLevel|UpdateInventoryLevelInTransfer $updateInventoryLevel) {
             return $updateInventoryLevel->inventoryItem->getPurchasable();
         })->all();
     }