diff --git a/app/Filament/Resources/RequestCharacteristicResource.php b/app/Filament/Resources/RequestCharacteristicResource.php
index 631e03e..b411bdc 100644
--- a/app/Filament/Resources/RequestCharacteristicResource.php
+++ b/app/Filament/Resources/RequestCharacteristicResource.php
@@ -2,6 +2,7 @@
 
 namespace App\Filament\Resources;
 
+use App\Filament\Exports\RequestCharacteristicExporter;
 use App\Filament\Resources\RequestCharacteristicResource\Pages;
 use App\Models\CharacteristicApproverMaster;
 use App\Models\Item;
@@ -15,6 +16,8 @@ use Filament\Forms\Get;
 use Filament\Forms\Set;
 use Filament\Resources\Resource;
 use Filament\Tables;
+use Filament\Tables\Actions\ExportAction;
+use Filament\Tables\Actions\ImportAction;
 use Filament\Tables\Table;
 use Illuminate\Database\Eloquent\Builder;
 use Illuminate\Database\Eloquent\SoftDeletingScope;
@@ -140,6 +143,9 @@ class RequestCharacteristicResource extends Resource
                                 $set('aufnr', null);
                                 $set('updated_by', Filament::auth()->user()?->name);
                             })
+                            ->default(function () {
+                                return optional(RequestCharacteristic::latest()->first())->item_id ?? [];
+                            })
                             ->disabled(fn ($get) => self::isFieldDisabled($get)),
                         Forms\Components\TextInput::make('aufnr')
                             ->label('Aufnr')
@@ -148,6 +154,9 @@ class RequestCharacteristicResource extends Resource
                             ->afterStateUpdated(function ($state, callable $set, callable $get) {
                                 $set('updated_by', Filament::auth()->user()?->name);
                             })
+                            ->default(function () {
+                                return optional(RequestCharacteristic::latest()->first())->aufnr ?? '';
+                            })
                             ->disabled(fn ($get) => self::isFieldDisabled($get)),
                         Forms\Components\Select::make('machine_name')
                             ->label('Machines')
@@ -162,14 +171,29 @@ class RequestCharacteristicResource extends Resource
                                     return [];
                                 }
 
-                                return CharacteristicApproverMaster::where('plant_id', $plantId)->where('machine_id', $machineId)->pluck('machine_name', 'id')->unique();
+                                return CharacteristicApproverMaster::where('plant_id', $plantId)->where('machine_id', $machineId)->pluck('machine_name', 'machine_name')->unique();
                             })
                             ->afterStateUpdated(function ($state, callable $set, callable $get) {
                                 $set('characteristic_approver_master_id', null);
+                                // dd($get('characteristic_approver_master_id'));
                                 $set('updated_by', Filament::auth()->user()?->name);
                             })
                             ->default(function () {
-                                return optional(RequestCharacteristic::latest()->first())->characteristic_approver_master_id ?? [];
+                                $machineName = '';
+                                $reqId = RequestCharacteristic::latest()->first()?->characteristic_approver_master_id;
+                                if ($reqId) {
+                                    $reqMac = CharacteristicApproverMaster::where('id', $reqId)->first()?->machine_name;
+                                    if ($reqMac) {
+                                        $machineName = $reqMac;
+                                    } else {
+                                        $machineName = null;
+                                    }
+                                } else {
+                                    $machineName = null;
+                                }
+
+                                // return optional(RequestCharacteristic::latest()->first())->characteristic_approver_master_id ?? [];
+                                return $machineName ?? [];
                             })
                             ->afterStateHydrated(function ($component, $state, Get $get, Set $set) {
                                 if ($get('id')) {
@@ -188,8 +212,8 @@ class RequestCharacteristicResource extends Resource
                             })
                             ->required(),
                         Forms\Components\Select::make('characteristic_approver_master_id')
-                            ->label('Master Characteristic')
-                            ->relationship('characteristicApproverMaster', 'characteristic_field')
+                            ->label('Master Characteristic Field')
+                            // ->relationship('characteristicApproverMaster', 'characteristic_field')
                             ->reactive()
                             ->nullable()
                             ->searchable()
@@ -204,6 +228,9 @@ class RequestCharacteristicResource extends Resource
 
                                 return CharacteristicApproverMaster::where('plant_id', $plantId)->where('machine_id', $machineId)->where('machine_name', $machineName)->pluck('characteristic_field', 'id');
                             })
+                            ->default(function () {
+                                return optional(RequestCharacteristic::latest()->first())->characteristic_approver_master_id ?? [];
+                            })
                             ->afterStateUpdated(function ($state, callable $set, callable $get) {
                                 $set('updated_by', Filament::auth()->user()?->name);
                             })
@@ -219,6 +246,7 @@ class RequestCharacteristicResource extends Resource
                                     ->afterStateUpdated(function ($state, callable $set, callable $get) {
                                         $set('updated_by', Filament::auth()->user()?->name);
                                     })
+                                    ->required()
                                     ->disabled(fn ($get) => self::isFieldDisabled($get)),
                                 Forms\Components\TextInput::make('current_value')
                                     ->label('Current Value')
@@ -250,6 +278,7 @@ class RequestCharacteristicResource extends Resource
                                 Forms\Components\Select::make('approver_status1')
                                     ->label('Approver Status')
                                     ->reactive()
+                                    ->live()
                                     ->options([
                                         'Approved' => 'Approved',
                                         'Hold' => 'Hold',
@@ -313,6 +342,7 @@ class RequestCharacteristicResource extends Resource
                                         default => 'Updated At',
                                     })
                                     ->reactive()
+                                    ->live()
                                     ->afterStateUpdated(function ($state, callable $set, callable $get) {
                                         $set('updated_by', Filament::auth()->user()?->name);
                                     })
@@ -814,6 +844,22 @@ class RequestCharacteristicResource extends Resource
                     Tables\Actions\ForceDeleteBulkAction::make(),
                     Tables\Actions\RestoreBulkAction::make(),
                 ]),
+            ])
+            ->headerActions([
+                // ImportAction::make()
+                //     ->label('Import Request Characteristics')
+                //     ->color('warning')
+                //     ->importer(RequestCharacteristicImporter::class)
+                //     ->visible(function () {
+                //         return Filament::auth()->user()->can('view import request characteristic');
+                //     }),
+                ExportAction::make()
+                    ->label('Export Request Characteristics')
+                    ->color('warning')
+                    ->exporter(RequestCharacteristicExporter::class)
+                    ->visible(function () {
+                        return Filament::auth()->user()->can('view export request characteristic');
+                    }),
             ]);
     }