diff --git a/GaelO2/app/GaelO/Adapters/HttpClientAdapter.php b/GaelO2/app/GaelO/Adapters/HttpClientAdapter.php
index b85c11c11..d2cc43bf5 100644
--- a/GaelO2/app/GaelO/Adapters/HttpClientAdapter.php
+++ b/GaelO2/app/GaelO/Adapters/HttpClientAdapter.php
@@ -5,9 +5,11 @@
 use App\GaelO\Interfaces\Adapters\HttpClientInterface;
 use App\GaelO\Interfaces\Adapters\Psr7ResponseInterface;
 use GuzzleHttp\Client;
+use GuzzleHttp\Exception\RequestException;
 use GuzzleHttp\Pool;
 use GuzzleHttp\Psr7\Request;
 use GuzzleHttp\Psr7\Response;
+use Illuminate\Support\Facades\Log;
 
 class HttpClientAdapter implements HttpClientInterface
 {
@@ -67,8 +69,15 @@ public function requestUploadArrayDicom(string $method, string $uri, array $file
             'fulfilled' => function (Response $response, $index) use (&$responseArray) {
                 $responseArray[] = new Psr7ResponseAdapter($response);
             },
-            'rejected' => function ($reason, $index) {
+            'rejected' => function (RequestException $exception, $index) {
+                $reason = "Error sending dicom to orthanc";
+                if ($exception->hasResponse()) {
+                    $reason = $exception->getResponse()->getReasonPhrase();
+                } else {
+                    $reason = $exception->getMessage();
+                }
                 // this is delivered each failed request
+                Log::error('DICOM Import Failed in Orthanc Temporary ' + $reason);
             },
         ]);
 
@@ -147,7 +156,7 @@ public function rowRequest(string $method, string $uri, $body, ?array $headers,
             $options['sink'] = $ressourceDestination;
         }
 
-        if(!$httpErrors){
+        if (!$httpErrors) {
             $options['http_errors'] = false;
         }
 
diff --git a/GaelO2/app/GaelO/UseCases/ValidateDicomUpload/ValidateDicomUpload.php b/GaelO2/app/GaelO/UseCases/ValidateDicomUpload/ValidateDicomUpload.php
index 920a06c9d..87fd5931a 100644
--- a/GaelO2/app/GaelO/UseCases/ValidateDicomUpload/ValidateDicomUpload.php
+++ b/GaelO2/app/GaelO/UseCases/ValidateDicomUpload/ValidateDicomUpload.php
@@ -109,7 +109,7 @@ public function execute(ValidateDicomUploadRequest $validateDicomUploadRequest,
 
             if ($expectedNumberOfInstances !== $importedNumberOfInstances) {
                 $this->orthancService->deleteFromOrthanc("studies", $importedOrthancStudyID);
-                throw new GaelOValidateDicomException("Imported DICOM not matching announced number of Instances");
+                throw new GaelOValidateDicomException("Imported DICOM (".$importedNumberOfInstances.") not matching announced number of Instances (".$expectedNumberOfInstances.")");
             }
 
             //Anonymize and store new anonymized study Orthanc ID
diff --git a/TODO b/TODO
index 6cd13f03a..d280d99da 100644
--- a/TODO
+++ b/TODO
@@ -15,4 +15,4 @@ Test par etude specifique
 
 **Code centres **
 Indicatif telephonique international, 0 separateur et code postal geographique (incréent de 1 si plusieurs etablissements)
-ex : 33031000
+ex : 33031000
\ No newline at end of file