diff --git a/app/Traits/Order/WithAddItem.php b/app/Traits/Order/WithAddItem.php
index c263595..2b9bb50 100644
--- a/app/Traits/Order/WithAddItem.php
+++ b/app/Traits/Order/WithAddItem.php
@@ -27,15 +27,7 @@ public function updatedFormBottleId(string $value)
 
         $formulas = Formula::where('size', $bottle->size)->orderBy('volume')->pluck('quality', 'id')->toArray();
 
-        // check if there is any formula
-        if (empty($formulas)) {
-            $this->qualities = [];
-            $this->toast('Kualitas tidak ditemukan, silakan hubungi Administrator.', 'Gagal', 'danger');
-
-            return;
-        }
-
-        $this->qualities = $formulas;
+        $this->qualities = $formulas + ['custom' => 'Custom'];
     }
 
     /**
@@ -44,16 +36,13 @@ public function updatedFormBottleId(string $value)
      */
     public function updatedFormBottleSize(string $value)
     {
-        $formulas = Formula::where('size', $value)->orderBy('volume')->pluck('quality', 'id')->toArray();
-
-        // check if there is any formula
-        if (empty($formulas)) {
-            $this->qualities = [];
-
-            return $this->toast('Kualitas tidak ditemukan, silakan hubungi Administrator.', 'Gagal', 'danger');
+        if ($this->tab !== 'refill') {
+            return;
         }
 
-        $this->qualities = $formulas;
+        $formulas = Formula::where('size', $value)->orderBy('volume')->pluck('quality', 'id')->toArray();
+
+        $this->qualities = $formulas + ['custom' => 'Custom'];
     }
 
     /**
@@ -76,15 +65,34 @@ protected function handleNewPerfume(): void
     {
         $perfume = Perfume::find($this->form->perfume_id);
         $bottle = Bottle::find($this->form->bottle_id);
-        $quality = Formula::find($this->form->quality_id);
 
-        if (! $perfume || ! $bottle || ! $quality) {
-            $this->toast('Parfum, botol, atau kualitas tidak valid.', 'Gagal', 'danger');
+        if (! $perfume || ! $bottle) {
+            $this->toast('Parfum atau botol tidak valid.', 'Gagal', 'danger');
 
             return;
         }
 
-        $quantity = $quality->volume;
+        if ($this->form->quality_id === 'custom') {
+            $quantity = parseRupiahToInt($this->form->bottle_size);
+            $qualityName = 'Custom';
+
+            if ($quantity <= 0) {
+                $this->toast('Jumlah parfum (Custom) tidak valid.', 'Gagal', 'danger');
+
+                return;
+            }
+        } else {
+            $quality = Formula::find($this->form->quality_id);
+
+            if (! $quality) {
+                $this->toast('Kualitas tidak valid.', 'Gagal', 'danger');
+
+                return;
+            }
+
+            $quantity = $quality->volume;
+            $qualityName = $quality->quality;
+        }
 
         if ($quantity <= 0) {
             $this->toast('Jumlah parfum tidak valid.', 'Gagal', 'danger');
@@ -92,7 +100,7 @@ protected function handleNewPerfume(): void
             return;
         }
 
-        $this->addOrUpdateOrderItem($perfume, $quantity);
+        $this->addOrUpdateOrderItem($perfume, $quantity, $qualityName);
 
         $this->addOrUpdateOrderItem($bottle, 1);
 
@@ -109,23 +117,42 @@ protected function handleNewPerfume(): void
     protected function handleRefillPerfume(): void
     {
         $perfume = Perfume::find($this->form->perfume_id);
-        $quality = Formula::find($this->form->quality_id);
 
-        if (! $perfume || ! $quality) {
-            $this->toast('Parfum, ukuran, atau kualitas tidak valid.', 'Gagal', 'danger');
+        if (! $perfume) {
+            $this->toast('Parfum tidak valid.', 'Gagal', 'danger');
 
             return;
         }
 
-        $quantity = $quality->volume;
+        if ($this->form->quality_id === 'custom') {
+            $quantity = parseRupiahToInt($this->form->bottle_size);
+            $qualityName = 'Custom';
 
-        if (! $perfume || ! $quality || $quantity <= 0) {
-            $this->toast('Parfum, ukuran, atau kualitas tidak valid.', 'Gagal', 'danger');
+            if ($quantity <= 0) {
+                $this->toast('Jumlah parfum (Custom) tidak valid.', 'Gagal', 'danger');
+
+                return;
+            }
+        } else {
+            $quality = Formula::find($this->form->quality_id);
+
+            if (! $quality) {
+                $this->toast('Kualitas tidak valid.', 'Gagal', 'danger');
+
+                return;
+            }
+
+            $quantity = $quality->volume;
+            $qualityName = $quality->quality;
+        }
+
+        if ($quantity <= 0) {
+            $this->toast('Jumlah parfum tidak valid.', 'Gagal', 'danger');
 
             return;
         }
 
-        $this->addOrUpdateOrderItem($perfume, $quantity);
+        $this->addOrUpdateOrderItem($perfume, $quantity, $qualityName);
 
         $this->toast('Parfum isi ulang ditambahkan ke keranjang.', 'Berhasil');
 
diff --git a/app/Traits/Order/WithManageItem.php b/app/Traits/Order/WithManageItem.php
index edca4cf..f780d9d 100644
--- a/app/Traits/Order/WithManageItem.php
+++ b/app/Traits/Order/WithManageItem.php
@@ -11,10 +11,11 @@ trait WithManageItem
      *
      * @param  mixed  $model  The model instance (Perfume, Bottle, or Product)
      * @param  int  $quantity  The quantity to add
+     * @param  string|null  $quality  The quality of the item
      */
-    protected function addOrUpdateOrderItem($model, int $quantity): void
+    protected function addOrUpdateOrderItem($model, int $quantity, ?string $quality = null): void
     {
-        $existing = $this->items->firstWhere(fn ($i) => $i->orderable_type === get_class($model) && $i->orderable_id === $model->id);
+        $existing = $this->items->firstWhere(fn ($i) => $i->orderable_type === get_class($model) && $i->orderable_id === $model->id && $i->quality === $quality);
 
         if ($existing) {
             $existing->increment('quantity', $quantity);
@@ -24,6 +25,7 @@ protected function addOrUpdateOrderItem($model, int $quantity): void
                 'user_id' => auth()->id(),
                 'orderable_id' => $model->id,
                 'orderable_type' => get_class($model),
+                'quality' => $quality,
                 'cogs' => $model->cost_price ?? 0,
                 'quantity' => $quantity,
                 'unit_price' => $model->sale_price ?? 0,
diff --git a/database/migrations/2025_10_06_135049_create_order_items_table.php b/database/migrations/2025_10_06_135049_create_order_items_table.php
index c4ece66..e7dfe2e 100644
--- a/database/migrations/2025_10_06_135049_create_order_items_table.php
+++ b/database/migrations/2025_10_06_135049_create_order_items_table.php
@@ -16,6 +16,7 @@ public function up(): void
             $table->foreignId('order_id')->nullable()->constrained()->cascadeOnDelete();
             $table->foreignId('user_id')->constrained()->cascadeOnDelete();
             $table->morphs('orderable');
+            $table->string('quality', 20)->nullable();
             $table->unsignedInteger('cogs');
             $table->unsignedInteger('unit_price');
             $table->unsignedInteger('quantity');
diff --git a/resources/views/livewire/studio/manage/order/form.blade.php b/resources/views/livewire/studio/manage/order/form.blade.php
index 19c53ce..c0ca266 100644
--- a/resources/views/livewire/studio/manage/order/form.blade.php
+++ b/resources/views/livewire/studio/manage/order/form.blade.php
@@ -125,6 +125,18 @@
                                                         botol...</span>
                                                 </flux:field>
                                             @endif
+
+                                            @if ($form->quality_id === 'custom')
+                                                <flux:field class="mt-4">
+                                                    <flux:label>Jumlah (ml)</flux:label>
+                                                    <flux:input.group>
+                                                        <flux:input placeholder="Masukkan jumlah (ml)"
+                                                            x-mask:dynamic="$money($input, ',')"
+                                                            wire:model="form.bottle_size" autocomplete="off" />
+                                                        <flux:input.group.suffix>ml</flux:input.group.suffix>
+                                                    </flux:input.group>
+                                                </flux:field>
+                                            @endif
                                         </div>
                                     </div>
                                 </flux:tab.panel>
@@ -227,11 +239,18 @@
                                         <flux:table.cell>
                                             <flux:heading>
                                                 <div>
-                                                    <div>{{ $item->orderable->name }}</div>
-                                                    <span
-                                                        class="text-xs text-gray-400">{{ formatCurrencyNumber($item->quantity, '') }}
-                                                        x
-                                                        {{ formatCurrencyNumber($item->unit_price, 'Rp') }}</span>
+                                                    <div>
+                                                        {{ $item->orderable->name }}
+                                                    </div>
+                                                    <span class="text-xs text-gray-400">
+                                                        @if ($item->quality && $item->quality !== 'Custom')
+                                                            {{ $item->quality }}
+                                                        @else
+                                                            {{ $item->quality === 'Custom' ? $item->quantity : formatCurrencyNumber($item->quantity, '') }}
+                                                            x
+                                                            {{ formatCurrencyNumber($item->unit_price, 'Rp') }}
+                                                        @endif
+                                                    </span>
                                                 </div>
                                             </flux:heading>
                                         </flux:table.cell>
diff --git a/tests/Feature/Studio/Manage/Order/CreateTest.php b/tests/Feature/Studio/Manage/Order/CreateTest.php
index 88a5760..54f6fec 100644
--- a/tests/Feature/Studio/Manage/Order/CreateTest.php
+++ b/tests/Feature/Studio/Manage/Order/CreateTest.php
@@ -91,6 +91,7 @@
         'orderable_type' => Perfume::class,
         'orderable_id' => $perfume->id,
         'quantity' => 30,
+        'quality' => 'Premium',
         'order_id' => null,
     ]);
 
@@ -103,6 +104,100 @@
     ]);
 });
 
+it('can add a new perfume with custom quality', function () {
+    $perfume = Perfume::factory()->create(['sale_price' => 1000]);
+    $bottle = Bottle::factory()->create(['size' => 'Custom', 'sale_price' => 5000]);
+
+    $this->outlet->perfumes()->attach($perfume->id, ['stock' => 1000]);
+    $this->outlet->bottles()->attach($bottle->id, ['stock' => 50]);
+
+    Livewire::actingAs($this->user)
+        ->test(Create::class)
+        ->set('form.outlet_id', $this->outlet->id)
+        ->set('tab', 'new')
+        ->set('form.perfume_id', $perfume->id)
+        ->set('form.bottle_id', $bottle->id)
+        ->set('form.quality_id', 'custom')
+        ->set('form.bottle_size', '15')
+        ->call('addPerfume')
+        ->assertHasNoErrors();
+
+    $this->assertDatabaseHas('order_items', [
+        'user_id' => $this->user->id,
+        'orderable_type' => Perfume::class,
+        'orderable_id' => $perfume->id,
+        'quantity' => 15,
+        'quality' => 'Custom',
+        'order_id' => null,
+    ]);
+});
+
+it('can add a refill perfume with custom quality', function () {
+    $perfume = Perfume::factory()->create(['sale_price' => 1000]);
+
+    $this->outlet->perfumes()->attach($perfume->id, ['stock' => 1000]);
+
+    Livewire::actingAs($this->user)
+        ->test(Create::class)
+        ->set('form.outlet_id', $this->outlet->id)
+        ->set('tab', 'refill')
+        ->set('form.perfume_id', $perfume->id)
+        ->set('form.quality_id', 'custom')
+        ->set('form.bottle_size', '50')
+        ->call('addPerfume')
+        ->assertHasNoErrors();
+
+    $this->assertDatabaseHas('order_items', [
+        'user_id' => $this->user->id,
+        'orderable_type' => Perfume::class,
+        'orderable_id' => $perfume->id,
+        'quantity' => 50,
+        'quality' => 'Custom',
+        'order_id' => null,
+    ]);
+});
+
+it('separates items with different qualities', function () {
+    $perfume = Perfume::factory()->create(['sale_price' => 1000]);
+    $bottle = Bottle::factory()->create(['size' => '30ml']);
+    $formula1 = Formula::factory()->create(['size' => '30ml', 'volume' => 30, 'quality' => 'Premium']);
+    $formula2 = Formula::factory()->create(['size' => '30ml', 'volume' => 30, 'quality' => 'Super']);
+
+    $this->outlet->perfumes()->attach($perfume->id, ['stock' => 1000]);
+    $this->outlet->bottles()->attach($bottle->id, ['stock' => 100]);
+
+    Livewire::actingAs($this->user)
+        ->test(Create::class)
+        ->set('form.outlet_id', $this->outlet->id)
+        ->set('tab', 'new')
+        ->set('form.perfume_id', $perfume->id)
+        ->set('form.bottle_id', $bottle->id)
+        ->set('form.quality_id', $formula1->id)
+        ->call('addPerfume')
+        ->set('form.perfume_id', $perfume->id)
+        ->set('form.bottle_id', $bottle->id)
+        ->set('form.quality_id', $formula2->id) // Switch quality
+        ->call('addPerfume');
+
+    $this->assertDatabaseHas('order_items', [
+        'orderable_id' => $perfume->id,
+        'quality' => 'Premium',
+        'quantity' => 30,
+    ]);
+
+    $this->assertDatabaseHas('order_items', [
+        'orderable_id' => $perfume->id,
+        'quality' => 'Super',
+        'quantity' => 30,
+    ]);
+
+    // Bottle should have aggregated to 2 (since bottle has no quality separation)
+    $this->assertDatabaseHas('order_items', [
+        'orderable_id' => $bottle->id,
+        'quantity' => 2,
+    ]);
+});
+
 it('can update item quantity in the cart', function () {
     $product = Product::factory()->create(['sale_price' => 50000]);
     $item = OrderItem::factory()->forProduct($product)->create([