Probleme envoi de masse

Bonjour,

J'aurais besoin d'un coup de main pour savoir ce qui bloque sur l'envoi de masse.

Le test de connexion se fait correctement, l'envoi unique aussi.
Mais l'envoi de masse avec fichier CSV, je planche. J'obtiens juste mon identifiant de connexion, comme pour le test.
/**

require 'monurl/autoload.php';
use \Ovh\Api;

$endpoint = 'ovh-eu';
$applicationKey = "xxxxxxxxxxxxxxxxxxxxxxxxx";
$applicationSecret = "xxxxxxxxxxxxxxxxxxxxx";
$consumer_key = "xxxxxxxxxxxxxxxxxxxx";

$conn = new Api( $applicationKey,
$applicationSecret,
$endpoint,
$consumer_key);

$smsServices = $conn->get('/sms/');
foreach ($smsServices as $smsService) {

print_r($smsService);
}
/*fin connexion api*/
/*debut requete suivant fichier de masse*/

$result = $ovh->post('/sms/MonSMS/jobs', array(
'charset' => 'UTF-8', // The sms coding (type: sms.CharsetEnum)
'class' => 'phoneDisplay', // The sms class (type: sms.ClassEnum)
'coding' => '7bit', // The sms coding (type: sms.CodingEnum)
'differedPeriod' => '', // The time -in minute(s)- to wait before sending the message (type: long)
'message' => 'Test', // Required: The sms message (type: string)
'noStopClause' => false, // Do not display STOP clause in the message, this requires that this is not an advertising message (type: boolean)
'priority' => 'high', // The priority of the message (type: sms.PriorityEnum)
'receiversDocumentUrl' => 'monurl/destinataire.csv', // The receivers document url link in csv format (type: string)*/
'senderForResponse' => false, // Set the flag to send a special sms which can be reply by the receiver (smsResponse). (type: boolean)
'validityPeriod' => '2880', // The maximum time -in minute(s)- before the message is dropped (type: long)
));

echo"fin";

print_r( $result );
?>