diff --git a/InventoryImportExport/Model/Import/Sources.php b/InventoryImportExport/Model/Import/Sources.php
index 88459e7a667..d6915a0ce78 100644
--- a/InventoryImportExport/Model/Import/Sources.php
+++ b/InventoryImportExport/Model/Import/Sources.php
@@ -33,6 +33,13 @@ class Sources extends AbstractEntity
     public const COL_QTY = SourceItemInterface::QUANTITY;
     public const COL_STATUS = SourceItemInterface::STATUS;
 
+    protected $validColumnNames = [
+        self::COL_SKU,
+        self::COL_SOURCE_CODE,
+        self::COL_QTY,
+        self::COL_STATUS
+    ];
+
     /**
      * @var Json
      */
@@ -91,6 +98,10 @@ public function __construct(
         $this->commands = $commands;
         $this->getSourceCodesBySkus = $getSourceCodesBySkus ?: ObjectManager::getInstance()
             ->get(\Magento\InventoryApi\Model\GetSourceCodesBySkusInterface::class);
+
+        foreach ($this->errorMessageTemplates as $errorCode => $message) {
+            $this->getErrorAggregator()->addErrorMessageTemplate($errorCode, $message);
+        }
     }
 
     /**