diff --git a/app/Filament/Pages/PanelBoxInspectionStock.php b/app/Filament/Pages/PanelBoxInspectionStock.php
index 9f87d84..799e8ee 100644
--- a/app/Filament/Pages/PanelBoxInspectionStock.php
+++ b/app/Filament/Pages/PanelBoxInspectionStock.php
@@ -310,10 +310,10 @@ class PanelBoxInspectionStock extends Page
             $itemCode = $panelBoxCode;
             $serialNumber = $panelBoxSerialNo;
 
-            if (strlen($serialNumber) > 28) {
+            if (strlen($serialNumber) > 30) {
                 Notification::make()
                     ->title('Invalid Serial Number')
-                    ->body("Serial number cannot be greater than 28 characters. Current length: " . strlen($panelBoxSerialNo))
+                    ->body("Serial number cannot be greater than 30 characters. Current length: " . strlen($panelBoxSerialNo))
                     ->danger()
                     ->send();