diff --git a/app/Http/Controllers/Repuve/CancellationController.php b/app/Http/Controllers/Repuve/CancellationController.php
index 6646fb6..dd4862f 100644
--- a/app/Http/Controllers/Repuve/CancellationController.php
+++ b/app/Http/Controllers/Repuve/CancellationController.php
@@ -245,7 +245,6 @@ public function cancelarTagNoAsignado(Request $request)
                 'folio' => 'required|string|exists:tags,folio',
                 'cancellation_reason_id' => 'required|exists:catalog_cancellation_reasons,id',
                 'cancellation_observations' => 'nullable|string',
-                'id_chip' => 'nullable|string|max:255',
                 'module_id' => 'nullable|exists:modules,id',
             ]);
 
@@ -263,6 +262,7 @@ public function cancelarTagNoAsignado(Request $request)
 
             // Validar que el tag NO esté asignado
             if ($tag->isAssigned()) {
+                DB::rollBack();
                 return ApiResponse::BAD_REQUEST->response([
                     'message' => 'Este tag está asignado a un vehículo. Usa el endpoint de cancelación de constancia.',
                     'tag_status' => $tag->status->name,
@@ -271,21 +271,13 @@ public function cancelarTagNoAsignado(Request $request)
 
             // Validar que no esté ya cancelado
             if ($tag->isCancelled()) {
+                DB::rollBack();
                 return ApiResponse::BAD_REQUEST->response([
                     'message' => 'El tag ya está cancelado.',
                 ]);
             }
 
-
-            $additionalInfo = [];
-            if ($request->filled('id_chip')) {
-                $additionalInfo[] = "ID CHIP: {$request->id_chip}";
-            }
-
             $observations = $request->cancellation_observations;
-            if (!empty($additionalInfo)) {
-                $observations = ($observations ? $observations . ' | ' : '') . implode(' | ', $additionalInfo);
-            }
 
             $cancellationLog = TagCancellationLog::create([
                 'tag_id' => $tag->id,
@@ -295,6 +287,9 @@ public function cancelarTagNoAsignado(Request $request)
                 'cancelled_by' => Auth::id(),
             ]);
 
+            // Cargar las relaciones necesarias
+            $cancellationLog->load(['cancellationReason', 'cancelledBy']);
+
             // Actualizar el módulo del tag si se proporciona
             if ($request->filled('module_id')) {
                 $tag->module_id = $request->module_id;
@@ -320,7 +315,7 @@ public function cancelarTagNoAsignado(Request $request)
                 $cancellationData = [
                     'fecha' => $lastCancellation ? $lastCancellation->cancellation_at->format('d/m/Y') : now()->format('d/m/Y'),
                     'folio' => $tag->folio ?? '',
-                    'id_chip' => $request->id_chip ?? '',
+                    'tag_number' => $tag->tag_number ?? 'N/A',
                     'motivo' => $lastCancellation && $lastCancellation->cancellationReason
                         ? $lastCancellation->cancellationReason->name
                         : 'No especificado',
diff --git a/resources/views/pdfs/tag.blade.php b/resources/views/pdfs/tag.blade.php
index c704ff1..6711fa9 100644
--- a/resources/views/pdfs/tag.blade.php
+++ b/resources/views/pdfs/tag.blade.php
@@ -121,8 +121,8 @@
                 <td class="data-value">{{ $cancellation['folio'] ?? '' }}</td>
             </tr>
             <tr class="data-row">
-                <td class="data-label">ID CHIP:</td>
-                <td class="data-value">{{ $cancellation['id_chip'] ?? '' }}</td>
+                <td class="data-label">TAG NUMBER:</td>
+                <td class="data-value">{{ $cancellation['tag_number'] ?? 'N/A' }}</td>
             </tr>
             <tr class="data-row">
                 <td class="data-label">MOTIVO:</td>