diff --git a/api/customs/management/commands/eliminar_pedimentos_duplicados.py b/api/customs/management/commands/eliminar_pedimentos_duplicados.py
index 760755b..ef6897c 100644
--- a/api/customs/management/commands/eliminar_pedimentos_duplicados.py
+++ b/api/customs/management/commands/eliminar_pedimentos_duplicados.py
@@ -9,14 +9,14 @@ class Command(BaseCommand):
     def handle(self, *args, **options):
         duplicados = (
             Pedimento.objects
-            .values('pedimento_app')
+            .values('pedimento')
             .annotate(total=Count('id'))
             .filter(total__gt=1)
         )
         for dup in duplicados:
             pedimentos = (
                 Pedimento.objects
-                .filter(pedimento_app=dup['pedimento_app'])
+                .filter(pedimento=dup['pedimento'])
                 .annotate(
                     num_docs=Count('documents'),
                     num_coves=Count('coves'),
@@ -28,10 +28,10 @@ class Command(BaseCommand):
             # Mantener el primero, eliminar los demás
             to_delete = pedimentos[1:]
             for ped in to_delete:
-                self.stdout.write(f'Eliminando pedimento {ped.id} ({ped.pedimento_app})')
+                self.stdout.write(f'Eliminando pedimento {ped.id} ({ped.pedimento})')
                 Cove.objects.filter(pedimento=ped).delete()
                 EDocument.objects.filter(pedimento=ped).delete()
                 Partida.objects.filter(pedimento=ped).delete()
                 Document.objects.filter(pedimento=ped).delete()
                 ped.delete()
-        self.stdout.write(self.style.SUCCESS('Eliminación de duplicados completada.'))
+        self.stdout.write(self.style.SUCCESS('Eliminación de duplicados completada.'))
\ No newline at end of file
diff --git a/api/customs/migrations/0016_alter_pedimento_unique_together.py b/api/customs/migrations/0016_alter_pedimento_unique_together.py
new file mode 100644
index 0000000..8cbbd27
--- /dev/null
+++ b/api/customs/migrations/0016_alter_pedimento_unique_together.py
@@ -0,0 +1,18 @@
+# Generated by Django 5.2.3 on 2025-10-07 00:36
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('customs', '0015_partida_updated_at'),
+        ('organization', '0002_remove_organizacion_membretado_and_more'),
+    ]
+
+    operations = [
+        migrations.AlterUniqueTogether(
+            name='pedimento',
+            unique_together={('organizacion', 'pedimento'), ('organizacion', 'pedimento_app')},
+        ),
+    ]
diff --git a/api/customs/models.py b/api/customs/models.py
index 01e993c..84fccba 100644
--- a/api/customs/models.py
+++ b/api/customs/models.py
@@ -60,6 +60,10 @@ class Pedimento(models.Model):
         verbose_name_plural = "Pedimentos"
         db_table = 'pedimento'
         ordering = ['pedimento']
+        unique_together = [
+            ['organizacion', 'pedimento'],
+            ['organizacion', 'pedimento_app']
+        ]
 
 class Partida(models.Model):
     pedimento = models.ForeignKey(Pedimento, on_delete=models.CASCADE, related_name='partidas', help_text="Pedimento asociado a la partida")