diff --git a/backend/api/v1/modules/a76/invoices/models.py b/backend/api/v1/modules/a76/invoices/models.py
index a5337664..10d22c0c 100644
--- a/backend/api/v1/modules/a76/invoices/models.py
+++ b/backend/api/v1/modules/a76/invoices/models.py
@@ -38,7 +38,7 @@ class InvoiceHeader(Base, TenantScopedMixin, TimestampMixin):
     id: Mapped[int] = mapped_column(BigInteger, primary_key=True, autoincrement=True)
 
     # Identifiers
-    system: Mapped[Optional[str]] = mapped_column(String(10))  # SISTEMA / Sistema de origen <-- no tiene campo en la antigua base de datos, sera para fixed-asset(scaf), inventory(scaii)
+    system: Mapped[Optional[str]] = mapped_column(String(12))  # SISTEMA / Sistema de origen <-- no tiene campo en la antigua base de datos, sera para fixed_asset(scaf), inventory(scaii)
     operation_type: Mapped[OperationType] = mapped_column(String(10))  # TIPOMOVIMIENTO / Clasifica imp/exp/sm/ctm
     invoice_type: Mapped[Optional[str]] = mapped_column(ForeignKey("public.invoice_types.key"))  # TIPOFACTURA / TIPODOC
     invoice_number: Mapped[Optional[str]] = mapped_column(String(20))  # FACTURAIMPO/FACTURAEXPO/FACTURAREMISION/FACTURAENVIO/FACTURASALIDA
diff --git a/backend/api/v1/modules/a76/invoices/schemas.py b/backend/api/v1/modules/a76/invoices/schemas.py
index 2afaec50..16c77e70 100644
--- a/backend/api/v1/modules/a76/invoices/schemas.py
+++ b/backend/api/v1/modules/a76/invoices/schemas.py
@@ -9,7 +9,7 @@ from .models import OperationType
 class InvoiceHeaderBase(BaseModel):
     """Base fields for Invoice Header"""
     system: Optional[str] = Field(
-        None, max_length=10, description="System of origin")
+        None, max_length=12, description="System of origin")
     operation_type: Optional[OperationType] = Field(
         None, max_length=10, description="Operation type: imp/exp/sm/ctm")
     invoice_type: Optional[str] = Field(
diff --git a/backend/api/v1/modules/a76/items/models.py b/backend/api/v1/modules/a76/items/models.py
index df310160..eb9c57a4 100644
--- a/backend/api/v1/modules/a76/items/models.py
+++ b/backend/api/v1/modules/a76/items/models.py
@@ -28,14 +28,9 @@ class Item(Base, TenantScopedMixin, TimestampMixin):
     }
 
     id: Mapped[int] = mapped_column(primary_key=True, autoincrement=True)
-    invoice_id: Mapped[int] = mapped_column(ForeignKey("a76.invoice_header.id"))  # CONSECUTIVO
-    # Type: IMPORT_TEMP, IMPORT_DEF, EXPORT, REPAIR, etc.
-    item_type: Mapped[str] = mapped_column(String(20))
-    system_origin: Mapped[str] = mapped_column(String(10))  # SCAF or SCAII
+    invoice_id: Mapped[int] = mapped_column(ForeignKey("a76.invoice_header.id"))  # CONSECUTIVO        
 
     # Item references
-    invoice_number: Mapped[Optional[str]] = mapped_column(
-        String(15))  # FACTURAIMPO/FACTURAEXPO
     reference_number: Mapped[Optional[str]] = mapped_column(
         String(20))  # NUMREFERENCIA
     order: Mapped[Optional[str]] = mapped_column(
@@ -44,8 +39,6 @@ class Item(Base, TenantScopedMixin, TimestampMixin):
         String(50))  # NUMEROGUIA/NUMERODEGUIA
 
     # Dates
-    invoice_date: Mapped[Optional[int]] = mapped_column(
-        Integer)  # FECHAFACTURA
     depreciation_date: Mapped[Optional[int]] = mapped_column(
         Integer)  # FECHADEPRECIACION
 
diff --git a/backend/api/v1/modules/a76/items/schemas.py b/backend/api/v1/modules/a76/items/schemas.py
index 85fe6c2f..3503bab1 100644
--- a/backend/api/v1/modules/a76/items/schemas.py
+++ b/backend/api/v1/modules/a76/items/schemas.py
@@ -24,14 +24,6 @@ from .line_items.schemas import (
 class ItemBase(BaseModel):
     """Base schema for items"""
     invoice_id: int = Field(..., description="Invoice ID")
-    item_type: str = Field(..., max_length=20,
-                           description="Item type: IMPORT_TEMP, IMPORT_DEF, EXPORT, REPAIR")
-    system_origin: str = Field(..., max_length=10,
-                               description="System origin: SCAF or SCAII")
-
-    # Item references
-    invoice_number: Optional[str] = Field(
-        None, max_length=15, description="Invoice number")
     reference_number: Optional[str] = Field(
         None, max_length=20, description="Reference number")
     order: Optional[str] = Field(None, max_length=50, description="Order")
@@ -39,7 +31,6 @@ class ItemBase(BaseModel):
         None, max_length=50, description="Guide number")
 
     # Dates
-    invoice_date: Optional[int] = Field(None, description="Invoice date")
     depreciation_date: Optional[int] = Field(
         None, description="Depreciation date")
 
@@ -60,10 +51,6 @@ class ItemCreate(ItemBase):
 class ItemUpdate(ItemBase):
     """Schema for updating item"""
     invoice_id: Optional[int] = Field(None, description="Invoice ID")
-    item_type: Optional[str] = Field(
-        None, max_length=20, description="Item type")
-    system_origin: Optional[str] = Field(
-        None, max_length=10, description="System origin")
     lines: Optional[list[LineItemUpdate]] = Field(
         None, description="List of line items to update")
 
diff --git a/frontend/src/lib/api/dashboard/a76/invoices.ts b/frontend/src/lib/api/dashboard/a76/invoices.ts
index e245f335..7dbb1c0d 100644
--- a/frontend/src/lib/api/dashboard/a76/invoices.ts
+++ b/frontend/src/lib/api/dashboard/a76/invoices.ts
@@ -232,10 +232,10 @@ export interface InvoiceListResponse {
 }
 
 export interface CreateInvoiceData {
-	system?: string | null;
-	operation_type?: OperationType | null;
-	invoice_type?: string | null;
-	invoice_number?: string | null;
+	system: string;
+	operation_type: OperationType;
+	invoice_type: string;
+	invoice_number: string;
 	project_number?: string | null;
 	purchase_order?: string | null;
 	related_doc_id?: number | null;
diff --git a/frontend/src/lib/api/dashboard/a76/items.ts b/frontend/src/lib/api/dashboard/a76/items.ts
index 94ea69d5..2dc3e26e 100644
--- a/frontend/src/lib/api/dashboard/a76/items.ts
+++ b/frontend/src/lib/api/dashboard/a76/items.ts
@@ -8,14 +8,10 @@ import { api } from '$lib/api';
 
 export interface Item {
 	id?: number;
-	invoice_id: number;
-	item_type: string;
-	system_origin: string;
-	invoice_number?: string;
+    invoice_id: number;
 	reference_number?: string;
 	order?: string;
-	guide_number?: string;
-	invoice_date?: number;
+	guide_number?: string;	
 	depreciation_date?: number;
 	rectification?: number;
 	warehouse?: string;
@@ -33,13 +29,9 @@ export interface ItemListResponse {
 
 export interface CreateItemData {
 	invoice_id: number;
-	item_type: string;
-	system_origin: string;
-	invoice_number?: string;
 	reference_number?: string;
 	order?: string;
-	guide_number?: string;
-	invoice_date?: number;
+	guide_number?: string;	
 	depreciation_date?: number;
 	rectification?: number;
 	warehouse?: string;
@@ -47,13 +39,9 @@ export interface CreateItemData {
 }
 
 export interface UpdateItemData {
-	item_type?: string;
-	system_origin?: string;
-	invoice_number?: string;
 	reference_number?: string;
 	order?: string;
-	guide_number?: string;
-	invoice_date?: number;
+	guide_number?: string;	
 	depreciation_date?: number;
 	rectification?: boolean;
 	warehouse?: string;
diff --git a/frontend/src/lib/components/dashboard/invoices/edit/general-tab-form.svelte b/frontend/src/lib/components/dashboard/invoices/edit/general-tab-form.svelte
index 5f9e640d..508208a7 100644
--- a/frontend/src/lib/components/dashboard/invoices/edit/general-tab-form.svelte
+++ b/frontend/src/lib/components/dashboard/invoices/edit/general-tab-form.svelte
@@ -203,8 +203,7 @@
         </div>
 
         <h4 class="text-xs font-semibold text-muted-foreground uppercase">Clientes - Proveedores - Agente Aduanal</h4>
-        <div class="space-y-1.5">
-            <Label for="provider_id" class="text-xs">Proveedor:</Label>
+        <div class="grid grid-cols-4 gap-3 space-y-1.5">            
             <Select.Root
                 type="single"
                 value={formData.provider_header || ''}
@@ -248,11 +247,10 @@
                         </Select.Item>
                     {/each}
                 </Select.Content>
-            </Select.Root>					
+            </Select.Root>			            
         </div>
 
-        <div class="space-y-1.5">
-            <Label for="sold_to_id" class="text-xs">Consignado a:</Label>
+        <div class="grid grid-cols-4 gap-3 space-y-1.5">            
             <Select.Root
                 type="single"
                 value={formData.sold_to_header || ''}
@@ -299,8 +297,7 @@
             </Select.Root>					
         </div>
 
-        <div class="space-y-1.5">
-            <Label for="shipped_to_id" class="text-xs">Enviado a:</Label>					
+        <div class="grid grid-cols-4 gap-3 space-y-1.5">        
             <Select.Root
                 type="single"
                 value={formData.shipped_to_header || ''}
@@ -347,59 +344,58 @@
             </Select.Root>
         </div>
 
-        <div class="grid grid-cols-2 gap-2">
-            <div class="space-y-1.5">
-                <Label for="customs_broker_id" class="text-xs">Agente Aduanal Mex:</Label>
-                <Select.Root
-                    type="single"
-                    value={formData.customs_broker_id || ''}
-                    onValueChange={(v) => {
-                        formData.customs_broker_id = v || null;
-                    }}
-                >
-                    <Select.Trigger id="customs_broker_id" class="h-7 text-xs">
-                        <span class="truncate">
-                            {formData.customs_broker_id 
-                                ? customsBrokers.find(cb => cb.broker_key === formData.customs_broker_id)?.name || '...'
-                                : '...'}
-                        </span>
-                    </Select.Trigger>
-                    <Select.Content class="max-h-[300px]">
-                        {#each customsBrokers as broker}
-                            <Select.Item value={broker.broker_key}>
-                                {broker.name}
-                            </Select.Item>
-                        {/each}
-                    </Select.Content>
-                </Select.Root>
-            </div>
+       
+        <div class="space-y-1.5">
+            <Label for="customs_broker_id" class="text-xs">Agente Aduanal Mex:</Label>
+            <Select.Root
+                type="single"
+                value={formData.customs_broker_id || ''}
+                onValueChange={(v) => {
+                    formData.customs_broker_id = v || null;
+                }}
+            >
+                <Select.Trigger id="customs_broker_id" class="h-7 text-xs">
+                    <span class="truncate">
+                        {formData.customs_broker_id 
+                            ? customsBrokers.find(cb => cb.broker_key === formData.customs_broker_id)?.name || '...'
+                            : '...'}
+                    </span>
+                </Select.Trigger>
+                <Select.Content class="max-h-[300px]">
+                    {#each customsBrokers as broker}
+                        <Select.Item value={broker.broker_key}>
+                            {broker.name}
+                        </Select.Item>
+                    {/each}
+                </Select.Content>
+            </Select.Root>
+        </div>        
 
-            <div class="space-y-1.5">
-                <Label for="customs_broker_us_id" class="text-xs">Agente Aduanal Ame:</Label>
-                <Select.Root
-                    type="single"
-                    value={formData.customs_broker_us_id || ''}
-                    onValueChange={(v) => {
-                        formData.customs_broker_us_id = v || null;
-                    }}
-                >
-                    <Select.Trigger id="customs_broker_us_id" class="h-7 text-xs">
-                        <span class="truncate">
-                            {formData.customs_broker_us_id 
-                                ? customsBrokers.find(cb => cb.broker_key === formData.customs_broker_us_id)?.name || '...'
-                                : '...'}
-                        </span>
-                    </Select.Trigger>
-                    <Select.Content class="max-h-[300px]">
-                        {#each customsBrokers as broker}
-                            <Select.Item value={broker.broker_key}>
-                                {broker.name}
-                            </Select.Item>
-                        {/each}
-                    </Select.Content>
-                </Select.Root>
-            </div>
-        </div>
+        <div class="space-y-1.5">
+            <Label for="customs_broker_us_id" class="text-xs">Agente Aduanal Ame:</Label>
+            <Select.Root
+                type="single"
+                value={formData.customs_broker_us_id || ''}
+                onValueChange={(v) => {
+                    formData.customs_broker_us_id = v || null;
+                }}
+            >
+                <Select.Trigger id="customs_broker_us_id" class="h-7 text-xs">
+                    <span class="truncate">
+                        {formData.customs_broker_us_id 
+                            ? customsBrokers.find(cb => cb.broker_key === formData.customs_broker_us_id)?.name || '...'
+                            : '...'}
+                    </span>
+                </Select.Trigger>
+                <Select.Content class="max-h-[300px]">
+                    {#each customsBrokers as broker}
+                        <Select.Item value={broker.broker_key}>
+                            {broker.name}
+                        </Select.Item>
+                    {/each}
+                </Select.Content>
+            </Select.Root>
+        </div>        
     </div>
 
     <!-- Columna Derecha: Tipo de Moneda y Transportista -->
diff --git a/frontend/src/lib/components/dashboard/invoices/edit/items/fa/item-configuration.svelte b/frontend/src/lib/components/dashboard/invoices/edit/items/fa/item-configuration.svelte
new file mode 100644
index 00000000..374d4067
--- /dev/null
+++ b/frontend/src/lib/components/dashboard/invoices/edit/items/fa/item-configuration.svelte
@@ -0,0 +1,72 @@
+<script lang="ts">
+	import * as RadioGroup from '$lib/components/ui/radio-group';
+	import { Input } from '$lib/components/ui/input';
+	import { Label } from '$lib/components/ui/label';
+
+	let { 
+		isSubPartida = $bindable(),
+		continueSubPartidas = $bindable()
+	}: { 
+		isSubPartida: string;
+		continueSubPartidas: string;
+	} = $props();
+</script>
+
+<div class="lg:col-span-5 space-y-3">
+	<!-- Is Item/Subitem and Continue Sub-Items -->
+	<div class="grid grid-cols-2 gap-2">
+		<fieldset class="border rounded-md p-2 space-y-2">
+			<legend class="text-xs font-semibold px-2 bg-gray-200 dark:bg-gray-700">Is</legend>
+			<RadioGroup.Root bind:value={isSubPartida} class="flex gap-3">
+				<div class="flex items-center space-x-2">
+					<RadioGroup.Item value="partida" id="partida" />
+					<Label for="partida" class="text-xs font-normal">Item</Label>
+				</div>
+				<div class="flex items-center space-x-2">
+					<RadioGroup.Item value="subpartida" id="subpartida" />
+					<Label for="subpartida" class="text-xs font-normal">Subitem</Label>
+				</div>
+			</RadioGroup.Root>
+		</fieldset>
+		
+		<fieldset class="border rounded-md p-2 space-y-2">
+			<legend class="text-xs font-semibold px-2 bg-gray-200 dark:bg-gray-700">Continue Sub-Items</legend>
+			<RadioGroup.Root bind:value={continueSubPartidas} class="flex gap-3">
+				<div class="flex items-center space-x-2">
+					<RadioGroup.Item value="si" id="continue_si" />
+					<Label for="continue_si" class="text-xs font-normal">Yes</Label>
+				</div>
+				<div class="flex items-center space-x-2">
+					<RadioGroup.Item value="no" id="continue_no" />
+					<Label for="continue_no" class="text-xs font-normal">No</Label>
+				</div>
+			</RadioGroup.Root>
+		</fieldset>
+	</div>
+
+	<!-- Descriptions -->
+	<fieldset class="border rounded-md p-2 space-y-2">							
+		<div class="space-y-1">
+			<Label for="num_parte" class="text-xs">Part Number:</Label>
+			<div class="flex gap-1">
+				<Input id="num_parte" class="h-7 text-xs" />									
+			</div>
+		</div>
+
+		<div class="space-y-1">
+			<Label for="desc_espanol" class="text-xs">Description in Spanish:</Label>
+			<textarea 
+				id="desc_espanol"
+				class="flex min-h-[60px] w-full rounded-md border border-input bg-background px-2 py-1 text-xs ring-offset-background placeholder:text-muted-foreground focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2"
+			></textarea>
+		</div>
+
+		<div class="space-y-1">
+			<Label for="desc_ingles" class="text-xs">Description in English:</Label>
+			<textarea 
+				id="desc_ingles"
+				class="flex min-h-[60px] w-full rounded-md border border-input bg-background px-2 py-1 text-xs ring-offset-background placeholder:text-muted-foreground focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2"
+			></textarea>
+		</div>
+	</fieldset>
+</div>
diff --git a/frontend/src/lib/components/dashboard/invoices/edit/items/fa/item-sheet-fa.svelte b/frontend/src/lib/components/dashboard/invoices/edit/items/fa/item-sheet-fa.svelte
new file mode 100644
index 00000000..ae9cdac2
--- /dev/null
+++ b/frontend/src/lib/components/dashboard/invoices/edit/items/fa/item-sheet-fa.svelte
@@ -0,0 +1,124 @@
+<script lang="ts">
+	import * as Sheet from '$lib/components/ui/sheet';
+	import * as Tabs from '$lib/components/ui/tabs';
+	import { Button } from '$lib/components/ui/button';
+	import { Loader2 } from 'lucide-svelte';
+	import type { Invoice } from '$lib/api/dashboard/a76/invoices';
+	import type { Item } from '$lib/api/dashboard/a76/items';
+	
+	// Import child components
+	import MainData from './main-data.svelte';
+	import ItemConfiguration from './item-configuration.svelte';
+	import PackagesSection from './packages-section.svelte';
+	import SummarySection from './summary-section.svelte';
+	import TabContinuation from './tab-continuation.svelte';
+	import TabSeries from './tab-series.svelte';
+	import TabLabeling from './tab-labeling.svelte';
+	import TabIdentifiers from './tab-identifiers.svelte';
+
+	let { 
+		open = $bindable(),
+		isEditMode = false,
+		editingItem = $bindable(),
+		invoice,
+		onSave,
+		isSaving = false
+	}: { 
+		open: boolean;
+		isEditMode?: boolean;
+		editingItem: Partial<Item>;
+		invoice: Invoice | null;
+		onSave: () => void;
+		isSaving?: boolean;
+	} = $props();
+
+	let isSubPartida = $state('partida');
+	let continueSubPartidas = $state('no');
+</script>
+
+<style>
+	:global([data-tabs-trigger]) {
+		cursor: pointer;
+	}
+</style>
+
+<Sheet.Root bind:open={open}>
+	<Sheet.Content side="right" class="w-full sm:max-w-[95vw] lg:max-w-[80vw] xl:max-w-[70vw] overflow-y-auto overflow-x-hidden">
+		<Sheet.Header class="text-white -mx-4 -mt-3 px-6">
+			<Sheet.Title class="text-base font-semibold text-white">
+				Temporary Import Item
+			</Sheet.Title>
+			<Sheet.Description class="text-xs text-purple-100">
+				Order Number: {invoice?.invoice_number || 'N/A'} | Line: 1
+			</Sheet.Description>
+		</Sheet.Header>
+
+		<div class="w-full max-w-full overflow-x-hidden px-1">
+			<!-- Always visible section: Main data and right column -->
+			<div class="grid grid-cols-1 lg:grid-cols-12 gap-4 mb-6">
+				<!-- Left column (7 columns) -->
+				<div class="lg:col-span-7 space-y-3">
+					<MainData />
+				</div>
+
+				<!-- Right column (5 columns) -->
+				<ItemConfiguration bind:isSubPartida={isSubPartida} bind:continueSubPartidas={continueSubPartidas} />
+			</div>
+
+			<!-- Tabs with additional content -->
+			<Tabs.Root value="generales" class="mt-6">
+				<Tabs.List class="grid w-full grid-cols-5 mb-4 h-9 gap-1">
+					<Tabs.Trigger value="generales" class="text-[10px] sm:text-xs px-1 sm:px-2 py-1">1) General</Tabs.Trigger>
+					<Tabs.Trigger value="continuacion" class="text-[10px] sm:text-xs px-1 sm:px-2 py-1">2) Continuation</Tabs.Trigger>
+					<Tabs.Trigger value="series" class="text-[10px] sm:text-xs px-1 sm:px-2 py-1">3) Series</Tabs.Trigger>
+					<Tabs.Trigger value="etiquetado" class="text-[10px] sm:text-xs px-1 sm:px-2 py-1">4) Labeling</Tabs.Trigger>
+					<Tabs.Trigger value="identificadores" class="text-[10px] sm:text-xs px-1 sm:px-2 py-1">5) Identifiers</Tabs.Trigger>
+				</Tabs.List>
+
+				<!-- Tab: General -->
+				<Tabs.Content value="generales" class="space-y-3 mt-0">
+					<div class="grid grid-cols-2 gap-3">
+						<PackagesSection />
+						<SummarySection />
+					</div>
+				</Tabs.Content>
+
+				<!-- Tab: Continuation -->
+				<Tabs.Content value="continuacion" class="space-y-3 mt-0">
+					<TabContinuation />
+				</Tabs.Content>
+
+				<!-- Tab: Series -->
+				<Tabs.Content value="series" class="space-y-3 mt-0">
+					<TabSeries />
+				</Tabs.Content>
+
+				<!-- Tab: Labeling -->
+				<Tabs.Content value="etiquetado" class="space-y-3 mt-0">
+					<TabLabeling />
+				</Tabs.Content>
+
+				<!-- Tab: Identifiers -->
+				<Tabs.Content value="identificadores" class="space-y-3 mt-0">
+					<TabIdentifiers />
+				</Tabs.Content>
+			</Tabs.Root>
+		</div>
+
+		<Sheet.Footer>
+			<div class="grid grid-cols-2 gap-2">
+				<Button variant="outline" onclick={() => open = false} disabled={isSaving}>
+					Cancel
+				</Button>
+				<Button onclick={onSave} disabled={isSaving}>
+					{#if isSaving}
+						<Loader2 class="w-4 h-4 mr-2 animate-spin" />
+						Saving...
+					{:else}
+						{isEditMode ? 'Save Changes' : 'Add Item'}
+					{/if}
+				</Button>
+			</div>
+		</Sheet.Footer>
+	</Sheet.Content>
+</Sheet.Root>
\ No newline at end of file
diff --git a/frontend/src/lib/components/dashboard/invoices/edit/items/fa/main-data.svelte b/frontend/src/lib/components/dashboard/invoices/edit/items/fa/main-data.svelte
new file mode 100644
index 00000000..6230db8e
--- /dev/null
+++ b/frontend/src/lib/components/dashboard/invoices/edit/items/fa/main-data.svelte
@@ -0,0 +1,74 @@
+<script lang="ts">
+	import { Input } from '$lib/components/ui/input';
+	import { Label } from '$lib/components/ui/label';
+</script>
+
+<fieldset class="border rounded-md p-3 space-y-3">
+	<legend class="text-xs font-semibold px-2 bg-gray-200 dark:bg-gray-700">Main Data</legend>
+	
+	<!-- Class -->
+	<div class="grid grid-cols-12 gap-2">
+		<div class="col-span-4 space-y-1">
+			<Label for="clase" class="text-xs font-medium">* Class:</Label>
+			<div class="flex gap-1">
+				<Input id="clase" class="h-8 text-xs" />
+			</div>
+		</div>							
+	</div>
+
+	<!-- Quantity -->
+	<div class="grid grid-cols-12 gap-2">
+		<div class="col-span-4 space-y-1">
+			<Label for="cantidad" class="text-xs font-medium">* Quantity:</Label>
+			<Input id="cantidad" type="number" min="0" value="0.00000000" class="h-8 text-xs text-right" />
+		</div>
+		<div class="col-span-4 space-y-1">
+			<Label class="text-xs font-medium">U.M.:</Label>
+			<div class="flex gap-1">
+				<div class="h-8 flex items-center flex-1">
+					<span class="text-xs text-muted-foreground">-</span>
+				</div>									
+			</div>
+		</div>
+	</div>
+
+	<!-- Unit Cost and Fraction -->
+	<div class="grid grid-cols-12 gap-2">
+		<div class="col-span-4 space-y-1">
+			<Label for="costo_unitario" class="text-xs font-medium">* Unit Cost:</Label>
+			<div class="flex items-center gap-2">
+				<Input id="costo_unitario" type="number" min="0" value="0.00000000" class="h-8 text-xs text-right flex-1" />
+				<span class="text-xs text-blue-600 font-semibold">USD</span>
+			</div>
+		</div>
+		<div class="col-span-5 space-y-1">
+			<Label for="fraccion" class="text-xs font-medium">Fraction:</Label>
+			<div class="flex gap-1">
+				<Input id="fraccion" value="0000 00 00" class="h-8 text-xs text-center" />									
+			</div>
+		</div>
+	</div>
+
+	<!-- Origin Country and Tariff Type -->
+	<div class="grid grid-cols-12 gap-2">
+		<div class="col-span-4 space-y-1">
+			<Label for="pais_origen" class="text-xs font-medium">* Origin Country:</Label>
+			<div class="flex gap-1">
+				<Input id="pais_origen" class="h-8 text-xs" />									
+			</div>
+		</div>
+		<div class="col-span-4 space-y-1">
+			<Label for="tipo_tarifa" class="text-xs font-medium">* Tariff Type:</Label>
+			<select id="tipo_tarifa" class="flex h-8 w-full rounded-md border border-input bg-background px-2 py-1 text-xs ring-offset-background">
+				<option>GENERAL</option>
+				<option>PREFERENCIAL</option>
+			</select>
+		</div>
+		<div class="col-span-4 space-y-1">
+			<Label class="text-xs font-medium">Advalorem:</Label>
+			<div class="h-8 flex items-center">
+				<span class="text-xs text-muted-foreground">0.00</span>
+			</div>
+		</div>
+	</div>
+</fieldset>
diff --git a/frontend/src/lib/components/dashboard/invoices/edit/items/fa/packages-section.svelte b/frontend/src/lib/components/dashboard/invoices/edit/items/fa/packages-section.svelte
new file mode 100644
index 00000000..dfc5fd75
--- /dev/null
+++ b/frontend/src/lib/components/dashboard/invoices/edit/items/fa/packages-section.svelte
@@ -0,0 +1,86 @@
+<script lang="ts">
+	import { Input } from '$lib/components/ui/input';
+	import { Label } from '$lib/components/ui/label';
+</script>
+
+<fieldset class="border rounded-md p-2 space-y-2">
+	<legend class="text-xs font-semibold px-2 bg-gray-200 dark:bg-gray-700">PACKAGES</legend>
+	
+	<div class="grid grid-cols-12 gap-2 items-end">
+		<div class="col-span-2 space-y-1">
+			<Label for="cantidad_bultos" class="text-xs">Quantity:</Label>
+			<Input id="cantidad_bultos" type="number" min="0" value="0" class="h-7 text-xs text-right" />
+		</div>
+		<div class="col-span-3 space-y-1">
+			<Label for="clave_bultos" class="text-xs">Package Code:</Label>
+			<Input id="clave_bultos" class="h-7 text-xs" />
+		</div>
+		<div class="col-span-1 flex items-end">								
+		</div>
+	</div>
+
+	<div class="grid grid-cols-12 gap-2 items-end">
+		<div class="col-span-2 space-y-1">
+			<Label for="peso_bultos" class="text-xs">Weight: 0</Label>
+		</div>
+		<div class="col-span-4 space-y-1">
+			<Label for="descripcion_bultos" class="text-xs">Description:</Label>
+		</div>
+	</div>
+
+	<!-- WEIGHTS subsection -->
+	<div class="border-t pt-2">
+		<div class="text-xs font-semibold mb-2">WEIGHTS</div>
+		<div class="grid grid-cols-6 gap-2 items-end">
+			<div class="col-span-2 space-y-1">
+				<Label for="peso_neto" class="text-xs">Net:</Label>
+				<Input id="peso_neto" type="number" min="0" value="0.00000000" class="h-7 text-xs text-right" />
+			</div>
+			<div class="col-span-2 space-y-1">
+				<Label for="peso_bruto" class="text-xs">Gross:</Label>
+				<Input id="peso_bruto" type="number" min="0" value="0.00000000" class="h-7 text-xs text-right" />
+			</div>
+			<div class="col-span-2 space-y-1">
+				<Label class="text-xs invisible">Space</Label>
+				<span class="text-xs text-red-600 font-semibold">KILOS</span>
+			</div>
+		</div>
+	</div>
+
+	<div class="grid grid-cols-12 gap-2 items-end">
+		<div class="col-span-2 space-y-1">
+			<Label for="no_permiso" class="text-xs">Permit No.:</Label>
+			<Input id="no_permiso" class="h-7 text-xs" />
+		</div>
+		<div class="col-span-3 space-y-1">
+			<Label for="pag_region" class="text-xs">Page/Region:</Label>
+			<Input id="pag_region" class="h-7 text-xs" />
+		</div>
+	</div>
+
+	<div class="grid grid-cols-12 gap-2 items-end">
+		<div class="col-span-4 space-y-1">
+			<Label for="fraccion_americana" class="text-xs">American Fraction:</Label>
+			<Input id="fraccion_americana" class="h-7 text-xs" />
+		</div>							
+		<div class="col-span-3 space-y-1">
+			<Label class="text-xs invisible">Space</Label>
+			<span class="text-xs">Advalorem: 0.00</span>
+		</div>
+	</div>
+
+	<div class="grid grid-cols-9 gap-2 items-end">
+		<div class="col-span-3 space-y-1">
+			<Label for="marca" class="text-xs">Brand:</Label>
+			<Input id="marca" class="h-7 text-xs" />
+		</div>
+		<div class="col-span-3 space-y-1">
+			<Label for="modelo" class="text-xs">Model:</Label>
+			<Input id="modelo" class="h-7 text-xs" />
+		</div>
+		<div class="col-span-3 space-y-1">
+			<Label for="orden_compra" class="text-xs">Purchase Order:</Label>
+			<Input id="orden_compra" class="h-7 text-xs" />
+		</div>						
+	</div>							
+</fieldset>
diff --git a/frontend/src/lib/components/dashboard/invoices/edit/items/fa/summary-section.svelte b/frontend/src/lib/components/dashboard/invoices/edit/items/fa/summary-section.svelte
new file mode 100644
index 00000000..186aedfe
--- /dev/null
+++ b/frontend/src/lib/components/dashboard/invoices/edit/items/fa/summary-section.svelte
@@ -0,0 +1,46 @@
+<script lang="ts">
+</script>
+
+<div>
+	<fieldset class="border rounded-md p-2 space-y-1 bg-red-50 dark:bg-red-950/20">
+		<legend class="text-xs font-semibold px-2 bg-red-700 text-white">GENERAL DATA</legend>
+		
+		<div class="text-xs font-semibold">RETURN QUANTITY SUB-ITEMS</div>
+		<div class="grid grid-cols-2 gap-2 text-xs">
+			<div>Temporary: <span class="text-blue-600">0.00000000</span></div>
+			<div>Replacement or Change: <span class="text-blue-600">0.00000000</span></div>
+			<div>Definitive: <span class="text-blue-600">0.00000000</span></div>
+			<div>Returned Values: <span class="text-blue-600">0.00000000</span></div>
+			<div class="col-span-2">Returned Values: <span class="text-blue-600">0.00000000</span></div>
+		</div>
+
+		<div class="grid grid-cols-2 gap-2 text-xs pt-2 border-t">
+			<div class="font-semibold">WEIGHTS (KILOS)</div>
+			<div class="font-semibold">WEIGHTS (Pounds)</div>
+			<div>Net: <span class="text-blue-600">0.00000000</span></div>
+			<div><span class="text-blue-600">0.00000000</span></div>
+			<div>Whole: <span class="text-blue-600">0.00000000</span></div>
+			<div><span class="text-blue-600">0.00000000</span></div>
+		</div>
+	</fieldset>
+
+	<!-- COSTS AND VALUES -->
+	<fieldset class="border rounded-md p-2 space-y-1 bg-amber-50 dark:bg-amber-950/20">
+		<legend class="text-xs font-semibold px-2 bg-amber-700 text-white">COSTS AND VALUES</legend>
+		
+		<div class="grid grid-cols-2 gap-2 text-xs">
+			<div class="font-semibold">(Dollars)</div>
+			<div class="font-semibold">(Pesos)</div>
+			<div>Cost: <span class="text-blue-600">0.00000000</span></div>
+			<div><span class="text-blue-600">0.00000000</span></div>
+			<div>Value: <span class="text-blue-600">0.00000000</span></div>
+			<div><span class="text-blue-600">0.00000000</span></div>
+		</div>
+
+		<div class="space-y-1 pt-2 border-t">
+			<div class="text-xs">Capture Cost: <span class="text-blue-600">0.00000000</span> <span class="text-blue-600">USD</span></div>
+			<div class="text-xs">Capture Value: <span class="text-blue-600">0.00000000</span> <span class="text-blue-600">USD</span></div>
+			<div class="text-xs">Customs Value: <span class="text-blue-600">0.00000000</span> <span class="text-blue-600">USD</span></div>
+		</div>
+	</fieldset>
+</div>
diff --git a/frontend/src/lib/components/dashboard/invoices/edit/items/fa/tab-continuation.svelte b/frontend/src/lib/components/dashboard/invoices/edit/items/fa/tab-continuation.svelte
new file mode 100644
index 00000000..cd4ff233
--- /dev/null
+++ b/frontend/src/lib/components/dashboard/invoices/edit/items/fa/tab-continuation.svelte
@@ -0,0 +1,133 @@
+<script lang="ts">
+	import * as RadioGroup from '$lib/components/ui/radio-group';
+	import { Input } from '$lib/components/ui/input';
+	import { Label } from '$lib/components/ui/label';
+	import { Checkbox } from '$lib/components/ui/checkbox';
+</script>
+
+<div class="grid grid-cols-1 lg:grid-cols-2 gap-4">
+	<!-- Left Column -->
+	<div class="space-y-3">
+		<!-- TAX PAID -->
+		<div class="grid grid-cols-4 gap-3">
+			<fieldset class="border rounded-md p-2 space-y-2">
+				<legend class="text-xs font-semibold px-2 bg-gray-200 dark:bg-gray-700">TAX PAID</legend>
+				<RadioGroup.Root value="no" class="flex gap-3">
+					<div class="flex items-center space-x-2">
+						<RadioGroup.Item value="si" id="pago_impuesto_si" />
+						<Label for="pago_impuesto_si" class="text-xs font-normal">Yes</Label>
+					</div>
+					<div class="flex items-center space-x-2">
+						<RadioGroup.Item value="no" id="pago_impuesto_no" />
+						<Label for="pago_impuesto_no" class="text-xs font-normal">No</Label>
+					</div>
+				</RadioGroup.Root>								
+			</fieldset>
+			<div class="space-y-1">
+				<div class="space-y-1">
+					<Label for="forma_pago" class="text-xs">Payment Method:</Label>
+					<div class="flex gap-1">
+						<Input id="forma_pago" value="21" class="h-7 text-xs" />									
+					</div>
+				</div>
+				<Label for="credito_iva" class="text-xs">VAT AND EXCISE TAX CREDITS.</Label>								
+			</div>
+		</div>
+
+		<!-- IGI Amount -->
+		<div class="grid grid-cols-2 gap-2">							
+			<div class="space-y-1">
+				<Label for="monto_igi" class="text-xs">IGI Amount:  0 <span class="text-xs">DOLLARS</span></Label>								
+			</div>
+		</div>
+		
+		<!-- Certificate of Origin -->
+		<div class="grid grid-cols-4 gap-3">							
+			<fieldset class="border rounded-md p-2 space-y-2">
+				<legend class="text-xs font-semibold px-2 bg-gray-200 dark:bg-gray-700">Has Certificate of Origin?</legend>
+				<RadioGroup.Root value="no" class="flex gap-3">
+					<div class="flex items-center space-x-2">
+						<RadioGroup.Item value="si" id="cert_origen_si" />
+						<Label for="cert_origen_si" class="text-xs font-normal">Yes</Label>
+					</div>
+					<div class="flex items-center space-x-2">
+						<RadioGroup.Item value="no" id="cert_origen_no" />
+						<Label for="cert_origen_no" class="text-xs font-normal">No</Label>
+					</div>
+				</RadioGroup.Root>								
+			</fieldset>
+			<div class="space-y-1 col-span-3">
+				<Label for="num_cert_origen" class="text-xs">Certificate of Origin No.:</Label>
+				<Input id="num_cert_origen" class="h-7 text-xs" />
+				<Label for="num_cert_origen" class="text-xs">End Date:</Label>
+			</div>
+		</div>
+
+		<!-- Location -->
+		<div class="space-y-2">						
+			<div class="space-y-1">
+				<Label for="localizacion_maquinaria" class="text-xs">Machinery and equipment location:</Label>
+				<div class="flex gap-1">
+					<Input id="localizacion_maquinaria" class="h-7 text-xs" />									
+				</div>
+				<Label for="localizacion_maquinaria" class="text-xs">Location variable</Label>
+			</div>
+		</div>
+
+		<!-- Military Equipment -->
+		<div class="flex items-center space-x-2 ">
+			<Checkbox id="equipo_militar" />
+			<Label for="equipo_militar" class="text-xs font-normal">Enable if Item Contains Military Equipment</Label>
+		</div>
+
+		<!-- Lot and Entry Number -->
+		<div class="grid grid-cols-2 gap-2">
+			<div class="space-y-1">
+				<Label for="lote" class="text-xs">Lot:</Label>
+				<Input id="lote" class="h-7 text-xs" />
+			</div>
+			<div class="space-y-1">
+				<Label for="num_entrada" class="text-xs">Entry No.:</Label>
+				<Input id="num_entrada" class="h-7 text-xs" />
+			</div>
+		</div>						
+	</div>
+
+	<!-- Right Column -->
+	<div class="space-y-3">					
+		<!-- Permit and Eighth Rule Fraction -->
+		<div class="space-y-2">
+			<div class="space-y-1">
+				<Label for="permiso_regla_octava" class="text-xs">Eighth Rule Permit:</Label>
+				<div class="flex gap-1">
+					<Input id="permiso_regla_octava" class="h-7 text-xs" />								
+				</div>
+			</div>
+			<div class="grid grid-cols-4 gap-2 items-end">
+				<div class="space-y-1 col-span-3">
+					<Label for="fraccion_regla_octava" class="text-xs">Eighth Rule Fraction:</Label>
+					<Input id="fraccion_regla_octava" value="0000.00.00" class="h-7 text-xs" />
+				</div>
+				<div class="space-y-1">
+					<Label for="linea_regla" class="text-xs">Line:</Label>
+					<Input id="linea_regla" type="number" min="0" value="0" class="h-7 text-xs text-right" />
+				</div>
+			</div>
+		</div>				
+		
+		<!-- Consider in a31 -->
+		<div class="flex items-center space-x-2 ">
+			<Checkbox id="a31" />
+			<Label for="a31" class="text-xs font-normal">Consider in A31</Label>
+		</div>
+
+		<!-- Extra Description -->
+		<div class="space-y-1">
+			<Label for="desc_extra_espanol" class="text-xs">Extra Description in Spanish:</Label>
+			<textarea 
+				id="desc_extra_espanol"
+				class="flex min-h-[80px] w-full rounded-md border border-input bg-background px-2 py-1 text-xs ring-offset-background placeholder:text-muted-foreground focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2"
+			></textarea>
+		</div>																		
+	</div>
+</div>
diff --git a/frontend/src/lib/components/dashboard/invoices/edit/items/fa/tab-identifiers.svelte b/frontend/src/lib/components/dashboard/invoices/edit/items/fa/tab-identifiers.svelte
new file mode 100644
index 00000000..63974265
--- /dev/null
+++ b/frontend/src/lib/components/dashboard/invoices/edit/items/fa/tab-identifiers.svelte
@@ -0,0 +1,39 @@
+<script lang="ts">
+	import { Input } from '$lib/components/ui/input';
+	import { Label } from '$lib/components/ui/label';
+</script>
+
+<fieldset class="border rounded-md p-3 space-y-3">
+	<legend class="text-xs font-semibold px-2 uppercase">Identifiers</legend>
+	
+	<div class="grid grid-cols-2 gap-4">
+		<div class="space-y-2">
+			<Label for="identificador1" class="text-xs">Identifier 1:</Label>
+			<Input id="identificador1" class="h-8 text-sm" />
+		</div>
+		<div class="space-y-2">
+			<Label for="identificador2" class="text-xs">Identifier 2:</Label>
+			<Input id="identificador2" class="h-8 text-sm" />
+		</div>
+	</div>
+
+	<div class="grid grid-cols-2 gap-4">
+		<div class="space-y-2">
+			<Label for="identificador3" class="text-xs">Identifier 3:</Label>
+			<Input id="identificador3" class="h-8 text-sm" />
+		</div>
+		<div class="space-y-2">
+			<Label for="identificador4" class="text-xs">Identifier 4:</Label>
+			<Input id="identificador4" class="h-8 text-sm" />
+		</div>
+	</div>
+
+	<div class="space-y-2">
+		<Label for="notas_identificadores" class="text-xs">Notes:</Label>
+		<textarea 
+			id="notas_identificadores"
+			class="flex min-h-[80px] w-full rounded-md border border-input bg-background px-3 py-2 text-sm ring-offset-background placeholder:text-muted-foreground focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2"
+			placeholder="Notes about identifiers..."
+		></textarea>
+	</div>
+</fieldset>
diff --git a/frontend/src/lib/components/dashboard/invoices/edit/items/fa/tab-labeling.svelte b/frontend/src/lib/components/dashboard/invoices/edit/items/fa/tab-labeling.svelte
new file mode 100644
index 00000000..3dd58e63
--- /dev/null
+++ b/frontend/src/lib/components/dashboard/invoices/edit/items/fa/tab-labeling.svelte
@@ -0,0 +1,28 @@
+<script lang="ts">
+	import { Input } from '$lib/components/ui/input';
+	import { Label } from '$lib/components/ui/label';
+</script>
+
+<fieldset class="border rounded-md p-3 space-y-3">
+	<legend class="text-xs font-semibold px-2 uppercase">Labeling</legend>
+	
+	<div class="grid grid-cols-2 gap-4">
+		<div class="space-y-2">
+			<Label for="numero_etiqueta" class="text-xs">Label Number:</Label>
+			<Input id="numero_etiqueta" class="h-8 text-sm" />
+		</div>
+		<div class="space-y-2">
+			<Label for="tipo_etiqueta" class="text-xs">Label Type:</Label>
+			<Input id="tipo_etiqueta" class="h-8 text-sm" />
+		</div>
+	</div>
+
+	<div class="space-y-2">
+		<Label for="observaciones_etiqueta" class="text-xs">Observations:</Label>
+		<textarea 
+			id="observaciones_etiqueta"
+			class="flex min-h-[80px] w-full rounded-md border border-input bg-background px-3 py-2 text-sm ring-offset-background placeholder:text-muted-foreground focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2"
+			placeholder="Labeling observations..."
+		></textarea>
+	</div>
+</fieldset>
diff --git a/frontend/src/lib/components/dashboard/invoices/edit/items/fa/tab-series.svelte b/frontend/src/lib/components/dashboard/invoices/edit/items/fa/tab-series.svelte
new file mode 100644
index 00000000..d5f242f6
--- /dev/null
+++ b/frontend/src/lib/components/dashboard/invoices/edit/items/fa/tab-series.svelte
@@ -0,0 +1,20 @@
+<script lang="ts">
+	import { Label } from '$lib/components/ui/label';
+</script>
+
+<fieldset class="border rounded-md p-3 space-y-3">
+	<legend class="text-xs font-semibold px-2 uppercase">Serial Numbers</legend>
+	
+	<div class="space-y-2">
+		<Label for="series" class="text-xs">Serial Numbers:</Label>
+		<textarea 
+			id="series"
+			class="flex min-h-[100px] w-full rounded-md border border-input bg-background px-3 py-2 text-sm ring-offset-background placeholder:text-muted-foreground focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2"
+			placeholder="Enter serial numbers, one per line..."
+		></textarea>
+	</div>
+
+	<div class="text-xs text-muted-foreground">
+		You can enter multiple serial numbers, one per line
+	</div>
+</fieldset>
diff --git a/frontend/src/lib/components/dashboard/invoices/edit/items/inv/item-sheet-inv.svelte b/frontend/src/lib/components/dashboard/invoices/edit/items/inv/item-sheet-inv.svelte
new file mode 100644
index 00000000..4b697771
--- /dev/null
+++ b/frontend/src/lib/components/dashboard/invoices/edit/items/inv/item-sheet-inv.svelte
@@ -0,0 +1,274 @@
+<script lang="ts">
+	import * as Sheet from '$lib/components/ui/sheet';
+	import * as Tabs from '$lib/components/ui/tabs';
+	import { Input } from '$lib/components/ui/input';
+	import { Label } from '$lib/components/ui/label';
+	import { Button } from '$lib/components/ui/button';
+	import { Loader2 } from 'lucide-svelte';
+	import type { Invoice } from '$lib/api/dashboard/a76/invoices';
+	import type { Item } from '$lib/api/dashboard/a76/items';
+
+	let { 
+		open = $bindable(),
+		isEditMode = false,
+		editingItem = $bindable(),
+		invoice,
+		onSave,
+		isSaving = false
+	}: { 
+		open: boolean;
+		isEditMode?: boolean;
+		editingItem: Partial<Item>;
+		invoice: Invoice | null;
+		onSave: () => void;
+		isSaving?: boolean;
+	} = $props();
+</script>
+
+<Sheet.Root bind:open={open}>
+	<Sheet.Content side="right" class="w-full sm:max-w-2xl overflow-y-auto">
+		<Sheet.Header>
+			<Sheet.Title>{isEditMode ? 'Editar Item' : 'Agregar Nuevo Item'} - SCAII (Inventario)</Sheet.Title>
+			<Sheet.Description>
+				{isEditMode ? 'Modifica los campos del inventario y guarda los cambios.' : 'Completa la información del nuevo item de inventario.'}
+			</Sheet.Description>
+		</Sheet.Header>
+
+		<Tabs.Root value="general" class="mt-6">
+			<Tabs.List class="grid w-full grid-cols-4">
+				<Tabs.Trigger value="general">General</Tabs.Trigger>
+				<Tabs.Trigger value="clasificacion">Clasificación</Tabs.Trigger>
+				<Tabs.Trigger value="cantidades">Cantidades</Tabs.Trigger>
+				<Tabs.Trigger value="otros">Otros</Tabs.Trigger>
+			</Tabs.List>
+
+			<!-- Tab: General -->
+			<Tabs.Content value="general" class="space-y-4 mt-4">
+				<!-- Información de la Factura (Solo lectura) -->
+				<div class="rounded-lg border bg-muted/50 p-4 space-y-3">
+					<h4 class="text-sm font-medium">Información de la Factura (SCAII - Inventario)</h4>
+					{#if !invoice?.id}
+						<div class="text-sm text-amber-600 bg-amber-50 dark:bg-amber-950/20 p-3 rounded">
+							⚠️ Esta factura aún no se ha guardado. Los items se asociarán cuando guardes la factura.
+						</div>
+					{:else}
+						<div class="grid grid-cols-2 gap-4 text-sm">
+							<div>
+								<span class="text-muted-foreground">ID Factura:</span>
+								<span class="ml-2 font-medium">{invoice.id}</span>
+							</div>
+							<div>
+								<span class="text-muted-foreground">Tipo Operación:</span>
+								<span class="ml-2 font-medium uppercase">{invoice.operation_type || 'N/A'}</span>
+							</div>
+							<div class="col-span-2">
+								<span class="text-muted-foreground">Número de Factura:</span>
+								<span class="ml-2 font-medium">{invoice.invoice_number || 'Pendiente'}</span>
+							</div>
+							<div class="col-span-2">
+								<span class="text-muted-foreground">Sistema:</span>
+								<span class="ml-2 font-medium bg-blue-100 dark:bg-blue-900/30 px-2 py-1 rounded">SCAII (Inventory)</span>
+							</div>
+						</div>
+					{/if}
+				</div>
+
+				<div class="grid grid-cols-2 gap-4">
+					<div class="space-y-2">
+						<Label for="reference_number">Número de Referencia</Label>
+						<Input id="reference_number" bind:value={editingItem.reference_number} />
+					</div>
+					<div class="space-y-2">
+						<Label for="order">Orden de Compra/Venta</Label>
+						<Input 
+							id="order" 
+							bind:value={editingItem.order}
+							placeholder={invoice?.purchase_order || ''}
+						/>
+					</div>
+				</div>
+
+				<div class="grid grid-cols-2 gap-4">
+					<div class="space-y-2">
+						<Label for="warehouse">Almacén</Label>
+						<Input id="warehouse" bind:value={editingItem.warehouse} />
+					</div>
+					<div class="space-y-2">
+						<Label for="location">Ubicación</Label>
+						<Input id="location" bind:value={editingItem.location} />
+					</div>
+				</div>
+
+				<!-- Campos específicos de SCAII -->
+				<div class="space-y-2">
+					<Label for="product_description">Descripción del Producto</Label>
+					<Input id="product_description" placeholder="Descripción detallada del producto" />
+				</div>
+
+				<div class="grid grid-cols-2 gap-4">
+					<div class="space-y-2">
+						<Label for="sku">SKU</Label>
+						<Input id="sku" placeholder="Código SKU del producto" />
+					</div>
+					<div class="space-y-2">
+						<Label for="batch">Lote</Label>
+						<Input id="batch" placeholder="Número de lote" />
+					</div>
+				</div>
+			</Tabs.Content>
+
+			<!-- Tab: Clasificación -->
+			<Tabs.Content value="clasificacion" class="space-y-4 mt-4">
+				<div class="space-y-4">
+					<div class="space-y-2">
+						<Label for="tariff_fraction">Fracción Arancelaria</Label>
+						<Input id="tariff_fraction" placeholder="8 dígitos" />
+					</div>
+
+					<div class="grid grid-cols-2 gap-4">
+						<div class="space-y-2">
+							<Label for="product_type">Tipo de Producto</Label>
+							<Input id="product_type" placeholder="Materia prima, producto terminado, etc." />
+						</div>
+						<div class="space-y-2">
+							<Label for="material_type">Tipo de Material</Label>
+							<Input id="material_type" placeholder="Metal, plástico, etc." />
+						</div>
+					</div>
+
+					<div class="space-y-2">
+						<Label for="product_code">Código de Producto</Label>
+						<Input id="product_code" placeholder="Código interno" />
+					</div>
+
+					<div class="grid grid-cols-2 gap-4">
+						<div class="space-y-2">
+							<Label for="country_origin">País de Origen</Label>
+							<Input id="country_origin" placeholder="Código del país" />
+						</div>
+						<div class="space-y-2">
+							<Label for="merchandise_category">Categoría de Mercancía</Label>
+							<Input id="merchandise_category" placeholder="Categoría" />
+						</div>
+					</div>
+				</div>
+			</Tabs.Content>
+
+			<!-- Tab: Cantidades -->
+			<Tabs.Content value="cantidades" class="space-y-4 mt-4">
+				<div class="space-y-4">
+					<div class="grid grid-cols-2 gap-4">
+						<div class="space-y-2">
+							<Label for="quantity">Cantidad</Label>
+							<Input id="quantity" type="number" placeholder="0" />
+						</div>
+						<div class="space-y-2">
+							<Label for="unit">Unidad de Medida</Label>
+							<Input id="unit" placeholder="PZA, KG, M, etc." />
+						</div>
+					</div>
+
+					<div class="grid grid-cols-2 gap-4">
+						<div class="space-y-2">
+							<Label for="net_weight">Peso Neto (KG)</Label>
+							<Input id="net_weight" type="number" step="0.01" placeholder="0.00" />
+						</div>
+						<div class="space-y-2">
+							<Label for="gross_weight">Peso Bruto (KG)</Label>
+							<Input id="gross_weight" type="number" step="0.01" placeholder="0.00" />
+						</div>
+					</div>
+
+					<div class="grid grid-cols-2 gap-4">
+						<div class="space-y-2">
+							<Label for="unit_value">Valor Unitario (USD)</Label>
+							<Input id="unit_value" type="number" step="0.01" placeholder="0.00" />
+						</div>
+						<div class="space-y-2">
+							<Label for="total_value">Valor Total (USD)</Label>
+							<Input id="total_value" type="number" step="0.01" placeholder="0.00" disabled />
+						</div>
+					</div>
+
+					<!-- Campos específicos de SCAII -->
+					<div class="grid grid-cols-2 gap-4">
+						<div class="space-y-2">
+							<Label for="packages">Número de Bultos</Label>
+							<Input id="packages" type="number" placeholder="0" />
+						</div>
+						<div class="space-y-2">
+							<Label for="package_type">Tipo de Empaque</Label>
+							<Input id="package_type" placeholder="Caja, pallet, etc." />
+						</div>
+					</div>
+
+					<div class="grid grid-cols-2 gap-4">
+						<div class="space-y-2">
+							<Label for="imported_quantity">Cantidad Importada</Label>
+							<Input id="imported_quantity" type="number" placeholder="0" />
+						</div>
+						<div class="space-y-2">
+							<Label for="remaining_quantity">Cantidad Remanente</Label>
+							<Input id="remaining_quantity" type="number" placeholder="0" disabled />
+						</div>
+					</div>
+				</div>
+			</Tabs.Content>
+
+			<!-- Tab: Otros -->
+			<Tabs.Content value="otros" class="space-y-4 mt-4">
+				<div class="space-y-4">
+					<div class="space-y-2">
+						<Label for="brand">Marca</Label>
+						<Input id="brand" placeholder="Marca del producto" />
+					</div>
+
+					<div class="grid grid-cols-2 gap-4">
+						<div class="space-y-2">
+							<Label for="expiration_date">Fecha de Caducidad</Label>
+							<Input id="expiration_date" type="date" />
+						</div>
+						<div class="space-y-2">
+							<Label for="production_date">Fecha de Producción</Label>
+							<Input id="production_date" type="date" />
+						</div>
+					</div>
+
+					<div class="grid grid-cols-2 gap-4">
+						<div class="space-y-2">
+							<Label for="min_stock">Stock Mínimo</Label>
+							<Input id="min_stock" type="number" placeholder="0" />
+						</div>
+						<div class="space-y-2">
+							<Label for="max_stock">Stock Máximo</Label>
+							<Input id="max_stock" type="number" placeholder="0" />
+						</div>
+					</div>
+
+					<div class="space-y-2">
+						<Label for="observations">Observaciones</Label>
+						<textarea 
+							id="observations"
+							class="flex min-h-[80px] w-full rounded-md border border-input bg-background px-3 py-2 text-sm ring-offset-background placeholder:text-muted-foreground focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2 disabled:cursor-not-allowed disabled:opacity-50"
+							placeholder="Notas adicionales sobre el inventario..."
+						></textarea>
+					</div>
+				</div>
+			</Tabs.Content>
+		</Tabs.Root>
+
+		<Sheet.Footer class="mt-6 gap-2">
+			<Button variant="outline" onclick={() => open = false} disabled={isSaving}>
+				Cancelar
+			</Button>
+			<Button onclick={onSave} disabled={isSaving}>
+				{#if isSaving}
+					<Loader2 class="w-4 h-4 mr-2 animate-spin" />
+					Guardando...
+				{:else}
+					{isEditMode ? 'Guardar Cambios' : 'Agregar Item'}
+				{/if}
+			</Button>
+		</Sheet.Footer>
+	</Sheet.Content>
+</Sheet.Root>
diff --git a/frontend/src/lib/components/dashboard/invoices/edit/items-tab-form.svelte b/frontend/src/lib/components/dashboard/invoices/edit/items/items-tab-form.svelte
similarity index 63%
rename from frontend/src/lib/components/dashboard/invoices/edit/items-tab-form.svelte
rename to frontend/src/lib/components/dashboard/invoices/edit/items/items-tab-form.svelte
index 6abacb33..e30f3a3d 100644
--- a/frontend/src/lib/components/dashboard/invoices/edit/items-tab-form.svelte
+++ b/frontend/src/lib/components/dashboard/invoices/edit/items/items-tab-form.svelte
@@ -1,16 +1,14 @@
 <script lang="ts">
 	import * as Table from '$lib/components/ui/table';
 	import * as Dialog from '$lib/components/ui/dialog';
-	import * as Sheet from '$lib/components/ui/sheet';
-	import * as Tabs from '$lib/components/ui/tabs';
-	import { Input } from '$lib/components/ui/input';
-	import { Label } from '$lib/components/ui/label';
 	import { Button } from '$lib/components/ui/button';
-	import { Plus, Pencil, Trash2, X, Loader2 } from 'lucide-svelte';
+	import { Plus, Pencil, Trash2, Loader2 } from 'lucide-svelte';
 	import { toast } from 'svelte-sonner';
 	import type { Invoice } from '$lib/api/dashboard/a76/invoices';
 	import { itemsApi, type Item } from '$lib/api/dashboard/a76/items';
 	import { companyStore } from '$lib/stores/company.svelte';
+	import ItemSheetFa from './fa/item-sheet-fa.svelte';
+	import ItemSheetInv from './inv/item-sheet-inv.svelte';
 
 	let { 
 		invoice,
@@ -42,14 +40,15 @@
 	let selectedItem = $state<Item | null>(null);
 	let editingItem = $state<Partial<Item>>({
 		invoice_id: undefined,
-		item_type: '',
-		invoice_number: '',
 		reference_number: '',
 		order: '',
 		warehouse: '',
 		location: ''
 	});
 
+	// Determinar el tipo de sistema (SCAF o SCAII)
+	const invoiceSystem = $derived(invoice?.system || 'scaii'); // Por defecto SCAII si no se especifica
+
 	// Derived value para company ID
 	const activeCompanyId = $derived(companyStore.activeCompany?.id);
 
@@ -116,8 +115,6 @@
 		// Auto-asignar valores desde la factura
 		editingItem = {
 			invoice_id: invoice.id,
-			item_type: invoice.operation_type || '',
-			invoice_number: invoice.invoice_number || '',
 			reference_number: '',
 			order: invoice.purchase_order || '',
 			warehouse: '',
@@ -144,9 +141,6 @@
 		try {
 			const response = await itemsApi.create(activeCompanyId, {
 				invoice_id: invoice.id,
-				item_type: editingItem.item_type || '',
-				system_origin: 'SCAF', // Por defecto SCAF, podrías hacerlo configurable
-				invoice_number: editingItem.invoice_number,
 				reference_number: editingItem.reference_number,
 				order: editingItem.order,
 				warehouse: editingItem.warehouse,
@@ -176,10 +170,7 @@
 		
 		isSaving = true;
 		try {
-			await itemsApi.update(selectedItem.id, activeCompanyId, {
-				item_type: editingItem.item_type,
-				system_origin: editingItem.system_origin,
-				invoice_number: editingItem.invoice_number,
+			await itemsApi.update(selectedItem.id, activeCompanyId, {							
 				reference_number: editingItem.reference_number,
 				order: editingItem.order,
 				warehouse: editingItem.warehouse,
@@ -256,8 +247,6 @@
 			<Table.Root>
 				<Table.Header class="sticky top-0 bg-background z-10">
 					<Table.Row>
-						<Table.Head class="w-[100px]">Tipo</Table.Head>
-						<Table.Head>Factura</Table.Head>
 						<Table.Head>Referencia</Table.Head>
 						<Table.Head>Orden</Table.Head>
 						<Table.Head>Almacén</Table.Head>
@@ -275,8 +264,6 @@
 					{:else}
 						{#each displayedItems as item (item.id)}
 							<Table.Row>
-								<Table.Cell class="font-medium">{item.item_type}</Table.Cell>
-								<Table.Cell>{item.invoice_number || '-'}</Table.Cell>
 								<Table.Cell>{item.reference_number || '-'}</Table.Cell>
 								<Table.Cell>{item.order || '-'}</Table.Cell>
 								<Table.Cell>{item.warehouse || '-'}</Table.Cell>
@@ -343,150 +330,26 @@
 </div>
 
 <!-- Item Sheet (Panel lateral para agregar/editar) -->
-<Sheet.Root bind:open={showItemSheet}>
-	<Sheet.Content side="right" class="w-full sm:max-w-2xl overflow-y-auto">
-		<Sheet.Header>
-			<Sheet.Title>{isEditMode ? 'Editar Item' : 'Agregar Nuevo Item'}</Sheet.Title>
-			<Sheet.Description>
-				{isEditMode ? 'Modifica los campos del item y guarda los cambios.' : 'Completa la información del nuevo item.'}
-			</Sheet.Description>
-		</Sheet.Header>
-
-		<Tabs.Root value="general" class="mt-6">
-			<Tabs.List class="grid w-full grid-cols-4">
-				<Tabs.Trigger value="general">General</Tabs.Trigger>
-				<Tabs.Trigger value="clasificacion">Clasificación</Tabs.Trigger>
-				<Tabs.Trigger value="cantidades">Cantidades</Tabs.Trigger>
-				<Tabs.Trigger value="otros">Otros</Tabs.Trigger>
-			</Tabs.List>
-
-			<!-- Tab: General -->
-			<Tabs.Content value="general" class="space-y-4 mt-4">
-				<!-- Información de la Factura (Solo lectura) -->
-				<div class="rounded-lg border bg-muted/50 p-4 space-y-3">
-					<h4 class="text-sm font-medium">Información de la Factura</h4>
-					{#if !invoice?.id}
-						<div class="text-sm text-amber-600 bg-amber-50 dark:bg-amber-950/20 p-3 rounded">
-							⚠️ Esta factura aún no se ha guardado. Los items se asociarán cuando guardes la factura.
-						</div>
-					{:else}
-						<div class="grid grid-cols-2 gap-4 text-sm">
-							<div>
-								<span class="text-muted-foreground">ID Factura:</span>
-								<span class="ml-2 font-medium">{invoice.id}</span>
-							</div>
-							<div>
-								<span class="text-muted-foreground">Tipo Operación:</span>
-								<span class="ml-2 font-medium uppercase">{invoice.operation_type || 'N/A'}</span>
-							</div>
-							<div class="col-span-2">
-								<span class="text-muted-foreground">Número de Factura:</span>
-								<span class="ml-2 font-medium">{invoice.invoice_number || 'Pendiente'}</span>
-							</div>
-						</div>
-					{/if}
-				</div>
-
-				<div class="grid grid-cols-2 gap-4">
-					<div class="space-y-2">
-						<Label for="reference_number">Número de Referencia</Label>
-						<Input id="reference_number" bind:value={editingItem.reference_number} />
-					</div>
-					<div class="space-y-2">
-						<Label for="order">Orden de Compra/Venta</Label>
-						<Input 
-							id="order" 
-							bind:value={editingItem.order}
-							placeholder={invoice?.purchase_order || ''}
-						/>
-					</div>
-				</div>
-
-				<div class="grid grid-cols-2 gap-4">
-					<div class="space-y-2">
-						<Label for="warehouse">Almacén</Label>
-						<Input id="warehouse" bind:value={editingItem.warehouse} />
-					</div>
-					<div class="space-y-2">
-						<Label for="location">Ubicación</Label>
-						<Input id="location" bind:value={editingItem.location} />
-					</div>
-				</div>
-
-				<div class="space-y-2">
-					<Label for="invoice_date">Fecha de Factura</Label>
-					<Input 
-						id="invoice_date" 
-						type="date" 
-						bind:value={editingItem.invoice_date} 
-					/>
-				</div>
-			</Tabs.Content>
-
-			<!-- Tab: Clasificación -->
-			<Tabs.Content value="clasificacion" class="space-y-4 mt-4">
-				<div class="rounded-lg border p-4">
-					<p class="text-sm text-muted-foreground">
-						Aquí puedes agregar campos de clasificación como:
-					</p>
-					<ul class="mt-2 text-sm text-muted-foreground list-disc list-inside">
-						<li>Fracción arancelaria</li>
-						<li>Código de producto</li>
-						<li>Clasificación SCAC</li>
-						<li>Material type</li>
-						<li>Categoría de mercancía</li>
-					</ul>
-				</div>
-			</Tabs.Content>
-
-			<!-- Tab: Cantidades -->
-			<Tabs.Content value="cantidades" class="space-y-4 mt-4">
-				<div class="rounded-lg border p-4">
-					<p class="text-sm text-muted-foreground">
-						Aquí puedes agregar campos de cantidades como:
-					</p>
-					<ul class="mt-2 text-sm text-muted-foreground list-disc list-inside">
-						<li>Cantidad</li>
-						<li>Unidad de medida</li>
-						<li>Peso neto</li>
-						<li>Peso bruto</li>
-						<li>Valor unitario</li>
-						<li>Valor total</li>
-					</ul>
-				</div>
-			</Tabs.Content>
-
-			<!-- Tab: Otros -->
-			<Tabs.Content value="otros" class="space-y-4 mt-4">
-				<div class="rounded-lg border p-4">
-					<p class="text-sm text-muted-foreground">
-						Aquí puedes agregar otros campos como:
-					</p>
-					<ul class="mt-2 text-sm text-muted-foreground list-disc list-inside">
-						<li>País de origen</li>
-						<li>Observaciones</li>
-						<li>Documentos adjuntos</li>
-						<li>Información adicional</li>
-					</ul>
-				</div>
-			</Tabs.Content>
-		</Tabs.Root>
-
-		<Sheet.Footer class="mt-6 gap-2">
-			<Button variant="outline" onclick={() => showItemSheet = false} disabled={isSaving}>
-				Cancelar
-			</Button>
-			<Button onclick={saveItem} disabled={isSaving}>
-				{#if isSaving}
-					<Loader2 class="w-4 h-4 mr-2 animate-spin" />
-					Guardando...
-				{:else}
-					{isEditMode ? 'Guardar Cambios' : 'Agregar Item'}
-				{/if}
-			</Button>
-		</Sheet.Footer>
-	</Sheet.Content>
-</Sheet.Root>
+<!-- Renderizar el componente apropiado según el sistema -->
+{#if invoiceSystem === 'fixed_asset'}
+	<ItemSheetFa 
+		bind:open={showItemSheet}
+		{isEditMode}
+		bind:editingItem={editingItem}
+		{invoice}
+		onSave={saveItem}
+		{isSaving}
+	/>
+{:else}
+	<ItemSheetInv 
+		bind:open={showItemSheet}
+		{isEditMode}
+		bind:editingItem={editingItem}
+		{invoice}
+		onSave={saveItem}
+		{isSaving}
+	/>
+{/if}
 
 <!-- Delete Confirmation Dialog -->
 <Dialog.Root bind:open={showDeleteDialog}>
diff --git a/frontend/src/lib/components/dashboard/invoices/edit/save-invoice.ts b/frontend/src/lib/components/dashboard/invoices/edit/save-invoice.ts
index 4f28297d..de34c42e 100644
--- a/frontend/src/lib/components/dashboard/invoices/edit/save-invoice.ts
+++ b/frontend/src/lib/components/dashboard/invoices/edit/save-invoice.ts
@@ -76,6 +76,7 @@ function buildInvoicePayload(formData: FormDataSet): CreateInvoiceData | UpdateI
 
 	const payload: CreateInvoiceData | UpdateInvoiceData = {
 		// Datos generales desde el formulario general
+		system: 'fixed_asset',
 		operation_type: generalFormData?.operation_type !== null && generalFormData?.operation_type !== undefined
 			? (generalFormData.operation_type === 1 ? 'exp' : 'imp') as OperationType
 			: undefined,
diff --git a/frontend/src/routes/dashboard/invoices/edit/[id]/+page.svelte b/frontend/src/routes/dashboard/invoices/edit/[id]/+page.svelte
index c67b04e6..6c7deee1 100644
--- a/frontend/src/routes/dashboard/invoices/edit/[id]/+page.svelte
+++ b/frontend/src/routes/dashboard/invoices/edit/[id]/+page.svelte
@@ -23,7 +23,7 @@
 	// Importar los componentes de cada pestaña
 	import GeneralTabForm from '$lib/components/dashboard/invoices/edit/general-tab-form.svelte';
 	import ObservationsTabForm from '$lib/components/dashboard/invoices/edit/observations-tab-form.svelte';
-	import ItemsTabForm from '$lib/components/dashboard/invoices/edit/items-tab-form.svelte';
+	import ItemsTabForm from '$lib/components/dashboard/invoices/edit/items/items-tab-form.svelte';
 	import OthersTabForm from '$lib/components/dashboard/invoices/edit/others-tab-form.svelte';
     import InvoiceTopFields from '$lib/components/dashboard/invoices/edit/invoice-top-fields.svelte';
 	import ContinuationTabForm from '$lib/components/dashboard/invoices/edit/continuation-tab-form.svelte';