diff --git a/src/MessageHandler/OrderDomainHandler.php b/src/MessageHandler/OrderDomainHandler.php
index 3cb1b5c..cd792a3 100644
--- a/src/MessageHandler/OrderDomainHandler.php
+++ b/src/MessageHandler/OrderDomainHandler.php
@@ -94,8 +94,6 @@ final readonly class OrderDomainHandler
              * If no errors occur, the purchase is attempted.
              */
 
-            $connectorProvider->authenticate($connector->getAuthData());
-
             $connectorProvider->orderDomain($domain, $this->kernel->isDebug());
 
             /*
diff --git a/src/MessageHandler/UpdateDomainsFromWatchlistHandler.php b/src/MessageHandler/UpdateDomainsFromWatchlistHandler.php
index 978f019..7faf492 100644
--- a/src/MessageHandler/UpdateDomainsFromWatchlistHandler.php
+++ b/src/MessageHandler/UpdateDomainsFromWatchlistHandler.php
@@ -8,12 +8,23 @@ use App\Message\OrderDomain;
 use App\Message\SendDomainEventNotif;
 use App\Message\UpdateDomainsFromWatchlist;
 use App\Notifier\DomainDeletedNotification;
+use App\Notifier\DomainOrderErrorNotification;
+use App\Notifier\DomainOrderNotification;
 use App\Notifier\DomainUpdateErrorNotification;
 use App\Repository\WatchListRepository;
 use App\Service\ChatNotificationService;
+use App\Service\Connector\AbstractProvider;
+use App\Service\Connector\CheckDomainProviderInterface;
+use App\Service\Connector\EppClientProvider;
+use App\Service\InfluxdbService;
 use App\Service\RDAPService;
+use App\Service\StatService;
+use Doctrine\ORM\EntityManagerInterface;
 use Psr\Log\LoggerInterface;
+use Symfony\Component\DependencyInjection\Attribute\Autowire;
+use Symfony\Component\DependencyInjection\ContainerInterface;
 use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
+use Symfony\Component\HttpKernel\KernelInterface;
 use Symfony\Component\Mailer\Exception\TransportExceptionInterface;
 use Symfony\Component\Mailer\MailerInterface;
 use Symfony\Component\Messenger\Attribute\AsMessageHandler;
@@ -40,6 +51,14 @@ final readonly class UpdateDomainsFromWatchlistHandler
         private MessageBusInterface $bus,
         private WatchListRepository $watchListRepository,
         private LoggerInterface $logger,
+        #[Autowire(service: 'service_container')]
+        private ContainerInterface $locator,
+        private EntityManagerInterface $em,
+        private KernelInterface $kernel,
+        private StatService $statService,
+        private InfluxdbService $influxdbService,
+        #[Autowire(param: 'influxdb_enabled')]
+        private bool $influxdbEnabled,
     ) {
         $this->sender = new Address($mailerSenderEmail, $mailerSenderName);
     }
@@ -63,6 +82,73 @@ final readonly class UpdateDomainsFromWatchlistHandler
             'token' => $message->watchListToken,
         ]);
 
+        $connector = $watchList->getConnector();
+
+        if (null !== $connector && null !== $connector->getProvider()) {
+            $provider = $connector->getProvider();
+            $connectorProviderClass = $provider->getConnectorProvider();
+            /** @var AbstractProvider $connectorProvider */
+            /** @var EppClientProvider $connectorProvider */
+            $connectorProvider = $this->locator->get($connectorProviderClass);
+        }
+
+        if (isset($connectorProvider) && $connectorProvider instanceof CheckDomainProviderInterface) {
+            $this->logger->notice('Watchlist {watchlist} is linked to connector {connector}.', [
+                'watchlist' => $message->watchListToken,
+                'connector' => $connector->getId(),
+            ]);
+
+            try {
+                $checkedDomains = $connectorProvider->checkDomains(
+                    ...array_unique(array_map(fn (Domain $d) => $d->getLdhName(), $watchList->getDomains()->toArray()))
+                );
+            } catch (\Throwable $exception) {
+                $this->logger->warning('Unable to check domain names availability with connector {connector}.', [
+                    'connector' => $connector->getId(),
+                ]);
+
+                throw $exception;
+            }
+
+            foreach ($checkedDomains as $domain) {
+                try {
+                    $connectorProvider->orderDomain($this->em->getReference(Domain::class, $domain), $this->kernel->isDebug());
+
+                    $this->logger->notice('Watchlist {watchlist} is linked to connector {connector}. A purchase was successfully made for domain {ldhName}.', [
+                        'watchlist' => $message->watchListToken,
+                        'connector' => $connector->getId(),
+                        'ldhName' => $domain,
+                    ]);
+
+                    // TODO : remove dupcode
+                    $this->statService->incrementStat('stats.domain.purchased');
+                    if ($this->influxdbEnabled) {
+                        $this->influxdbService->addDomainOrderPoint($connector, $domain, true);
+                    }
+                    $notification = (new DomainOrderNotification($this->sender, $domain, $connector));
+                    $this->mailer->send($notification->asEmailMessage(new Recipient($watchList->getUser()->getEmail()))->getMessage());
+                    $this->chatNotificationService->sendChatNotification($watchList, $notification);
+                } catch (\Throwable $exception) {
+                    // TODO : remove dupcode
+                    $this->logger->warning('Unable to complete purchase. An error message is sent to user {username}.', [
+                        'username' => $watchList->getUser()->getUserIdentifier(),
+                    ]);
+
+                    $this->statService->incrementStat('stats.domain.purchase.failed');
+                    if ($this->influxdbEnabled) {
+                        $this->influxdbService->addDomainOrderPoint($connector, $domain, false);
+                    }
+                    $notification = (new DomainOrderErrorNotification($this->sender, $domain));
+                    $this->mailer->send($notification->asEmailMessage(new Recipient($watchList->getUser()->getEmail()))->getMessage());
+                    $this->chatNotificationService->sendChatNotification($watchList, $notification);
+
+                    throw $exception;
+                }
+            }
+
+            return;
+        }
+
         /*
          * A domain name is updated if one or more of these conditions are met:
          * - was updated more than 7 days ago
@@ -89,7 +175,7 @@ final readonly class UpdateDomainsFromWatchlistHandler
                     $this->chatNotificationService->sendChatNotification($watchList, $notification);
                 }
 
-                if (null !== $watchList->getConnector()) {
+                if (null !== $connector) {
                     /*
                      * If the domain name no longer appears in the WHOIS AND a connector is associated with this Watchlist,
                      * this connector is used to purchase the domain name.
diff --git a/src/Service/Connector/EppClientProviderInterface.php b/src/Service/Connector/CheckDomainProviderInterface.php
similarity index 73%
rename from src/Service/Connector/EppClientProviderInterface.php
rename to src/Service/Connector/CheckDomainProviderInterface.php
index e2540ec..f0bc649 100644
--- a/src/Service/Connector/EppClientProviderInterface.php
+++ b/src/Service/Connector/CheckDomainProviderInterface.php
@@ -2,7 +2,7 @@
 
 namespace App\Service\Connector;
 
-interface EppClientProviderInterface
+interface CheckDomainProviderInterface
 {
     public function checkDomains(string ...$domains): array;
 }
diff --git a/src/Service/Connector/EppClientProvider.php b/src/Service/Connector/EppClientProvider.php
index 0b4c857..d9a3363 100644
--- a/src/Service/Connector/EppClientProvider.php
+++ b/src/Service/Connector/EppClientProvider.php
@@ -15,7 +15,7 @@ use Psr\Cache\CacheItemInterface;
 use Psr\Cache\CacheItemPoolInterface;
 use Psr\Cache\InvalidArgumentException;
 
-class EppClientProvider extends AbstractProvider implements EppClientProviderInterface
+class EppClientProvider extends AbstractProvider implements CheckDomainProviderInterface
 {
     private eppConnection $eppClient;
 
@@ -62,7 +62,9 @@ class EppClientProvider extends AbstractProvider implements EppClientProviderInt
             $d->addContact(new eppContactHandle($contact, $type));
         }
 
-        $this->eppClient->request(new eppCreateDomainRequest($d));
+        if (!$dryRun) {
+            $this->eppClient->request(new eppCreateDomainRequest($d));
+        }
 
         $this->eppClient->logout();
         $this->eppClient->disconnect();