diff --git a/app/Filament/Resources/RequestCharacteristicResource.php b/app/Filament/Resources/RequestCharacteristicResource.php
index 2cb0915..0a1903a 100644
--- a/app/Filament/Resources/RequestCharacteristicResource.php
+++ b/app/Filament/Resources/RequestCharacteristicResource.php
@@ -910,6 +910,7 @@ class RequestCharacteristicResource extends Resource
                     ->sortable(),
                 Tables\Columns\TextColumn::make('characteristic_name')
                     ->label('Characteristic Name')
+                    ->default('-')
                     ->alignCenter()
                     ->searchable()
                     ->formatStateUsing(fn (string $state): string => strtoupper(__($state)))
@@ -917,13 +918,21 @@ class RequestCharacteristicResource extends Resource
                     ->sortable(),
                 Tables\Columns\TextColumn::make('current_value')
                     ->label('Current Value')
+                    ->default('-')
                     ->alignCenter()
                     ->searchable()
+                    ->formatStateUsing(function ($record) {
+                        return empty($record->characteristic_name) ? '-' : $record->current_value;
+                    })
                     ->sortable(),
                 Tables\Columns\TextColumn::make('update_value')
                     ->label('Update Value')
+                    ->default('-')
                     ->alignCenter()
                     ->searchable()
+                    ->formatStateUsing(function ($record) {
+                        return empty($record->characteristic_name) ? '-' : $record->update_value;
+                    })
                     ->sortable(),
                 Tables\Columns\TextColumn::make('characteristicApproverMaster.name1')
                     ->label('Approver Name 1')
@@ -1011,8 +1020,21 @@ class RequestCharacteristicResource extends Resource
                     ->sortable(),
                 Tables\Columns\TextColumn::make('mail_status')
                     ->label('Mail Status')
+                    ->default('-')
                     ->alignCenter()
                     ->searchable()
+                    ->formatStateUsing(function ($state) {
+                        if (! $state || $state == '' || $state == null) {
+                            return '-';
+                        }
+
+                        return match ($state) {
+                            'Sent' => 'Sent-Mail1',
+                            'Sent-Mail2' => 'Sent-Mail2',
+                            'Sent-Mail3' => 'Sent-Mail3',
+                            default => '-',
+                        };
+                    })
                     ->sortable()
                     ->toggleable(isToggledHiddenByDefault: true),
                 Tables\Columns\TextColumn::make('trigger_at')