diff --git a/app/Filament/Resources/InvoiceResource.php b/app/Filament/Resources/InvoiceResource.php
index 4004b29..91e949d 100644
--- a/app/Filament/Resources/InvoiceResource.php
+++ b/app/Filament/Resources/InvoiceResource.php
@@ -3,10 +3,10 @@
 namespace App\Filament\Resources;
 
 use App\Filament\Resources\InvoiceResource\Pages;
+use App\Filament\Resources\InvoiceResource\RelationManagers\OrdersRelationManager;
 use App\Filament\Resources\InvoiceResource\RelationManagers\ProductServicesRelationManager;
 use App\Models\Customer;
 use App\Models\Invoice;
-use App\Models\Order;
 use Filament\Forms\Components\DatePicker;
 use Filament\Forms\Components\Grid;
 use Filament\Forms\Components\Section;
@@ -43,15 +43,6 @@ public static function form(Form $form): Form
                                 ->searchable()
                                 ->columnSpan(2),
 
-                            Select::make('orders')
-                                ->options(fn ($get): array => Order::where('customer_id', $get('customer_id') ?? null)->whereNull('invoice_id')
-                                    ->get()
-                                    ->pluck('customer_po', 'id')
-                                    ->toArray())
-                                ->multiple()
-                                ->searchable()
-                                ->columnSpan(2),
-
                             Split::make([
                                 DatePicker::make('date')
                                     ->required()
@@ -114,9 +105,6 @@ public static function table(Table $table): Table
             ->defaultSort('created_at', 'desc')
             ->actions([
                 Tables\Actions\EditAction::make(),
-                //                    ->after(function (Invoice $record) {
-                //                        return redirect(EditInvoice::getUrl(['record' => $record->id]));
-                //                    }),
             ])
             ->bulkActions([
                 Tables\Actions\BulkActionGroup::make([
@@ -128,6 +116,7 @@ public static function table(Table $table): Table
     public static function getRelations(): array
     {
         return [
+            OrdersRelationManager::class,
             ProductServicesRelationManager::class,
         ];
     }
diff --git a/app/Filament/Resources/InvoiceResource/Pages/EditInvoice.php b/app/Filament/Resources/InvoiceResource/Pages/EditInvoice.php
index 8c379e6..3ed30f3 100644
--- a/app/Filament/Resources/InvoiceResource/Pages/EditInvoice.php
+++ b/app/Filament/Resources/InvoiceResource/Pages/EditInvoice.php
@@ -3,50 +3,17 @@
 namespace App\Filament\Resources\InvoiceResource\Pages;
 
 use App\Filament\Resources\InvoiceResource;
-use App\Models\Invoice;
-use App\Models\Order;
 use Filament\Actions;
 use Filament\Resources\Pages\EditRecord;
-use Illuminate\Database\Eloquent\Model;
 
 class EditInvoice extends EditRecord
 {
     protected static string $resource = InvoiceResource::class;
 
-    protected function mutateFormDataBeforeFill(array $data): array
-    {
-        $invoice = Invoice::findOrFail($data['id']);
-
-        foreach ($invoice->orders as $order) {
-            $data['orders'][] = $order->customer_po;
-        }
-
-        return $data;
-    }
-
-    protected function handleRecordUpdate(Model $record, array $data): Model
-    {
-        foreach ($record->orders as $order) {
-            $order->invoice()->disassociate();
-            $order->save();
-        }
-
-        $record->orders()->saveMany(Order::findMany($data['orders']));
-
-        $record->calculateTotals();
-
-        return $record;
-    }
-
     protected function getHeaderActions(): array
     {
         return [
             Actions\DeleteAction::make(),
         ];
     }
-
-    protected function getRedirectUrl(): string
-    {
-        return $this->getResource()::getUrl('edit', ['record' => $this->record->id]);
-    }
 }
diff --git a/app/Filament/Resources/InvoiceResource/RelationManagers/OrdersRelationManager.php b/app/Filament/Resources/InvoiceResource/RelationManagers/OrdersRelationManager.php
index 92614c4..e9946d4 100644
--- a/app/Filament/Resources/InvoiceResource/RelationManagers/OrdersRelationManager.php
+++ b/app/Filament/Resources/InvoiceResource/RelationManagers/OrdersRelationManager.php
@@ -7,6 +7,7 @@
 use Filament\Resources\RelationManagers\RelationManager;
 use Filament\Tables;
 use Filament\Tables\Table;
+use Illuminate\Database\Eloquent\Builder;
 
 class OrdersRelationManager extends RelationManager
 {
@@ -18,7 +19,7 @@ public function form(Form $form): Form
             ->schema([
                 Forms\Components\TextInput::make('customer_po')
                     ->required()
-                    ->maxLength(255),
+                    ->maxLength(100),
             ]);
     }
 
@@ -27,22 +28,36 @@ public function table(Table $table): Table
         return $table
             ->recordTitleAttribute('customer_po')
             ->columns([
-                Tables\Columns\TextColumn::make('customer_po'),
+                Tables\Columns\TextColumn::make('customer_po')
+                    ->color('code')
+                    ->weight('bold'),
+                Tables\Columns\TextColumn::make('total_product_quantity'),
+                Tables\Columns\TextColumn::make('total_service_price')
+                    ->prefix('$'),
             ])
             ->filters([
                 //
             ])
             ->headerActions([
                 Tables\Actions\AssociateAction::make()
-                    ->multiple(),
+                    ->multiple()
+                    ->preloadRecordSelect()
+                    ->recordSelectOptionsQuery(fn (Builder $query) => $query->where('customer_id', $this->ownerRecord->customer->id))
+                    ->after(function () {
+                        $this->ownerRecord->calculateTotals();
+                    }),
             ])
             ->actions([
-                Tables\Actions\DeleteAction::make(),
+                Tables\Actions\DissociateAction::make()
+                    ->after(function () {
+                        $this->ownerRecord->calculateTotals();
+                    }),
             ])
             ->bulkActions([
                 Tables\Actions\BulkActionGroup::make([
-                    Tables\Actions\DeleteBulkAction::make(),
+                    Tables\Actions\DissociateBulkAction::make(),
                 ]),
-            ]);
+            ])
+            ->inverseRelationship('invoice');
     }
 }
diff --git a/app/Models/Order.php b/app/Models/Order.php
index e5bff02..25c17a7 100644
--- a/app/Models/Order.php
+++ b/app/Models/Order.php
@@ -45,6 +45,7 @@ class Order extends Model
 
     protected $appends = [
         'total_service_price',
+        'total_product_quantity',
     ];
 
     protected $casts = [
@@ -79,7 +80,7 @@ public function generateInternalPo(int $id): string
         return 'TN'.$year.'-'.$po;
     }
 
-    public function totalProductQuantity(): int
+    public function getTotalProductQuantityAttribute(): int
     {
         $total = 0;
 
diff --git a/database/migrations/2024_09_08_163053_create_invoices_table.php b/database/migrations/2024_09_08_163053_create_invoices_table.php
index 99c5463..0a1da22 100644
--- a/database/migrations/2024_09_08_163053_create_invoices_table.php
+++ b/database/migrations/2024_09_08_163053_create_invoices_table.php
@@ -18,6 +18,7 @@ public function up(): void
 
             $table->boolean('gst')->default(0);
             $table->boolean('pst')->default(0);
+            $table->boolean('paid')->default(0);
 
             $table->date('date')->default(today());
             $table->date('due_date')->nullable();
diff --git a/resources/views/orders/show.blade.php b/resources/views/orders/show.blade.php
index 8ff4989..006367c 100644
--- a/resources/views/orders/show.blade.php
+++ b/resources/views/orders/show.blade.php
@@ -313,7 +313,7 @@ class="py-0 form-control-plaintext text-secondary"
                     <label for="total-quantity" class="text-nowrap col-form-label">Total Quantity:</label>
 
                     <input type="number" name="total-quantity" id="" class="form-control-plaintext" readonly
-                            value="{{$order->totalProductQuantity()}}">
+                            value="{{$order->getTotalProductQuantity()}}">
                 </div>
 
                 <!-- Product Services -->
diff --git a/resources/views/pdf/order.blade.php b/resources/views/pdf/order.blade.php
index 5a8db5d..76ba189 100644
--- a/resources/views/pdf/order.blade.php
+++ b/resources/views/pdf/order.blade.php
@@ -172,7 +172,7 @@
         </div>
         <div class="row mt-3 text-end" style="font-size: 11px">
             <div class="col">
-                TOTAL QUANTITY: {{$order->totalProductQuantity()}}
+                TOTAL QUANTITY: {{$order->totalProductQuantity}}
             </div>
         </div>