diff --git a/app/Helpers/Bank/Nordigen/Transformer/TransactionTransformer.php b/app/Helpers/Bank/Nordigen/Transformer/TransactionTransformer.php
index 422f59983a..839177f4ed 100644
--- a/app/Helpers/Bank/Nordigen/Transformer/TransactionTransformer.php
+++ b/app/Helpers/Bank/Nordigen/Transformer/TransactionTransformer.php
@@ -81,15 +81,14 @@ class TransactionTransformer implements BankRevenueInterface
 
     public function transformTransaction($transaction)
     {
-
-        if ((!array_key_exists('transactionId', $transaction) && !array_key_exists('internalTransactionId', $transaction)) || !array_key_exists('transactionAmount', $transaction))
-            throw new \Exception('invalid dataset');
-
+        // depending on institution, the result can be different, so we load the first available unique id
         $transactionId = '';
         if (array_key_exists('transactionId', $transaction))
             $transactionId = $transaction["transactionId"];
         else if (array_key_exists('internalTransactionId', $transaction))
             $transactionId = $transaction["internalTransactionId"];
+        else
+            throw new \Exception('invalid dataset: missing transactionId - Please report this error to the developer');
 
         $amount = (float) $transaction["transactionAmount"]["amount"];