diff --git a/app/Filament/Resources/ProcessOrderResource.php b/app/Filament/Resources/ProcessOrderResource.php
index 9750b99..b79aea7 100644
--- a/app/Filament/Resources/ProcessOrderResource.php
+++ b/app/Filament/Resources/ProcessOrderResource.php
@@ -179,6 +179,7 @@ class ProcessOrderResource extends Resource
                 Forms\Components\TextInput::make('process_order')
                     ->label('Process Order')
                     ->reactive()
+                    ->length(12)
                     ->afterStateUpdated(function ($state, $set, callable $get, $livewire) {
                         $plantId = $get('plant_id');
                         $set('coil_number', null);