diff --git a/app/Http/Controllers/Shop/PayboxController.php b/app/Http/Controllers/Shop/PayboxController.php
index 8600446a..15d0c17f 100644
--- a/app/Http/Controllers/Shop/PayboxController.php
+++ b/app/Http/Controllers/Shop/PayboxController.php
@@ -3,13 +3,19 @@
 namespace App\Http\Controllers\Shop;
 
 use App\Http\Controllers\Controller;
+use App\Repositories\Core\User\ShopCart;
+use App\Repositories\Shop\Paybox as PayboxGateway;
 use App\Repositories\Shop\Contents;
 use Illuminate\Http\Request;
+use Illuminate\Support\Facades\Log;
+
 
 class PayboxController extends Controller
 {
     public function accepted()
     {
+        ShopCart::clear();
+
         return view('paybox.paybox', ['content' => Contents::getPayboxConfirmedContent()]);
     }
 
@@ -30,8 +36,20 @@ class PayboxController extends Controller
 
     public function process(Request $request)
     {
-        $data = $request->all();
+        $invoiceId = $request->input('order_number');
 
-        return view('paybox.send', $data);
+        if (! $invoiceId) {
+            Log::warning('Paybox callback missing order_number', ['payload' => $request->all()]);
+
+            return response('Missing order_number', 400);
+        }
+
+        $success = PayboxGateway::verifyPayment($invoiceId);
+
+        if (! $success) {
+            return response('KO', 400);
+        }
+
+        return response('OK');
     }
 }
diff --git a/app/Repositories/Shop/Paybox.php b/app/Repositories/Shop/Paybox.php
index 9dacff36..6ca3195f 100644
--- a/app/Repositories/Shop/Paybox.php
+++ b/app/Repositories/Shop/Paybox.php
@@ -2,12 +2,15 @@
 
 namespace App\Repositories\Shop;
 
+use App\Models\Shop\Invoice;
 use App\Models\Shop\InvoicePayment;
+use App\Repositories\Core\DateTime;
 use Bnb\PayboxGateway\Requests\Paybox\AuthorizationWithCapture;
 use Bnb\PayboxGateway\Requests\PayboxDirect\Capture;
 use Bnb\PayboxGateway\Responses\Exceptions\InvalidSignature;
 use Bnb\PayboxGateway\Responses\Paybox\Verify;
 use Illuminate\Support\Facades\App;
+use Illuminate\Support\Facades\DB;
 use Illuminate\Support\Facades\Log;
 
 class Paybox
@@ -23,17 +26,141 @@ class Paybox
 
     public static function verifyPayment($invoiceId)
     {
-        $invoice = Invoices::get($invoiceId);
-        $payboxVerify = App::make(Verify::class);
-        try {
-            $success = $payboxVerify->isSuccess($invoice->total_shipped);
-            if ($success) {
-                // process order here after making sure it was real payment
-            }
-            echo 'OK';
-        } catch (InvalidSignature $e) {
-            Log::alert('Invalid payment signature detected');
+        $invoice = Invoices::get($invoiceId, ['order']);
+
+        if (! $invoice) {
+            Log::warning('Paybox callback received for unknown invoice', [
+                'invoice_id' => $invoiceId,
+                'payload' => request()->all(),
+            ]);
+
+            return false;
         }
+
+        $payboxVerify = App::make(Verify::class);
+
+        try {
+            $isSuccessful = $payboxVerify->isSuccess($invoice->total_shipped);
+        } catch (InvalidSignature $e) {
+            Log::alert('Invalid payment signature detected', [
+                'invoice_id' => $invoiceId,
+                'payload' => request()->except('signature'),
+            ]);
+
+            return false;
+        }
+
+        if (! $isSuccessful) {
+            Log::warning('Paybox payment verification failed', [
+                'invoice_id' => $invoiceId,
+                'response_code' => $payboxVerify->getResponseCode(),
+                'payload' => request()->except('signature'),
+            ]);
+
+            return false;
+        }
+
+        return self::finalizeInvoicePayment($invoice);
+    }
+
+    protected static function finalizeInvoicePayment(Invoice $invoice)
+    {
+        $order = $invoice->order;
+
+        if (! $order) {
+            Log::error('Paybox payment cannot be finalized: missing related order', [
+                'invoice_id' => $invoice->id,
+            ]);
+
+            return false;
+        }
+
+        $request = request();
+        $referenceParts = array_filter([
+            $request->input('call_number'),
+            $request->input('transaction_number'),
+        ]);
+        $reference = $referenceParts ? implode('-', $referenceParts) : $request->input('authorization_number');
+        if (! $reference) {
+            $reference = 'paybox-'.$invoice->id;
+        }
+
+        $payload = $request->except('signature');
+        $existingPayment = InvoicePayment::where('invoice_id', $invoice->id)
+            ->where('reference', $reference)
+            ->first();
+        $shouldNotify = false;
+        $validatedTotal = InvoicePayment::where('invoice_id', $invoice->id)
+            ->validated()
+            ->sum('amount');
+
+        if (! $existingPayment && (float) $validatedTotal >= (float) $invoice->total_shipped) {
+            Log::info('Paybox payment ignored: invoice already fully settled', [
+                'invoice_id' => $invoice->id,
+                'order_id' => $order->id,
+                'reference' => $reference,
+            ]);
+
+            return true;
+        }
+
+        DB::transaction(function () use ($invoice, $order, $reference, $payload, $existingPayment, &$shouldNotify) {
+            $attributes = [
+                'payment_type' => 1,
+                'amount' => $invoice->total_shipped,
+                'date' => DateTime::getDate(),
+                'data' => json_encode($payload, JSON_UNESCAPED_UNICODE),
+                'validated' => 1,
+            ];
+
+            if ($existingPayment) {
+                $previousValidationState = (int) ($existingPayment->validated ?? 0);
+                $existingPayment->fill($attributes);
+
+                if ($existingPayment->isDirty()) {
+                    $existingPayment->save();
+                }
+
+                if ($previousValidationState !== 1 && (int) $existingPayment->validated === 1) {
+                    $shouldNotify = true;
+                }
+            } else {
+                InvoicePayment::create($attributes + [
+                    'invoice_id' => $invoice->id,
+                    'reference' => $reference,
+                ]);
+                $shouldNotify = true;
+            }
+
+            Invoices::checkPayments($invoice->id);
+
+            $paidStatus = Orders::getStatusByName('Préparation');
+            if ($paidStatus !== '' && (int) $order->status !== (int) $paidStatus) {
+                $order->status = $paidStatus;
+                $order->save();
+            }
+        });
+
+        if ($shouldNotify) {
+            try {
+                OrderMails::sendOrderConfirmed($order->id);
+            } catch (\Throwable $exception) {
+                Log::error('Unable to send order confirmation email after Paybox payment', [
+                    'order_id' => $order->id,
+                    'invoice_id' => $invoice->id,
+                    'exception' => $exception->getMessage(),
+                ]);
+            }
+        }
+
+        Log::info('Paybox payment finalized successfully', [
+            'invoice_id' => $invoice->id,
+            'order_id' => $order->id,
+            'reference' => $reference,
+            'notified' => $shouldNotify,
+        ]);
+
+        return true;
     }
 
     public static function getPreviousAuthorizedRequest($request)