diff --git a/backend/api/v1/modules/a76/general_catalogs/packages/models.py b/backend/api/v1/modules/a76/general_catalogs/packages/models.py
index f191fa94..92b07647 100644
--- a/backend/api/v1/modules/a76/general_catalogs/packages/models.py
+++ b/backend/api/v1/modules/a76/general_catalogs/packages/models.py
@@ -19,7 +19,7 @@ class Package(Base, TenantScopedMixin, TimestampMixin):
     __table_args__ = (
         PrimaryKeyConstraint("id", name="packages_pkey"),
         UniqueConstraint("tenant_id", "company_id", "key", name="packages_key_ukey"),
-        {"schema": "a76"},
+        {"schema": "a76", "extend_existing": True},
     )
 
     id: Mapped[int] = mapped_column(Integer, primary_key=True)
diff --git a/backend/api/v1/modules/a76/items/line_quantities/models.py b/backend/api/v1/modules/a76/items/line_quantities/models.py
index c7a60558..cc588e1e 100644
--- a/backend/api/v1/modules/a76/items/line_quantities/models.py
+++ b/backend/api/v1/modules/a76/items/line_quantities/models.py
@@ -4,6 +4,8 @@ from sqlalchemy import  String, Integer, Numeric,  SmallInteger, ForeignKey
 from sqlalchemy.orm import Mapped, mapped_column, relationship
 from core.database import Base
 
+from api.v1.modules.a76.general_catalogs.packages.models import Package
+
 if TYPE_CHECKING:
     from ..line_items.models import LineItem
     
@@ -38,13 +40,14 @@ class LineQuantity(Base):
     net_weight: Mapped[Optional[Decimal]] = mapped_column(Numeric(19, 8))  # PESONETO
     gross_weight: Mapped[Optional[Decimal]] = mapped_column(Numeric(19, 8))  # PESOBRUTO    
     
+    
     # Packaging
-    package_key: Mapped[Optional[str]] = mapped_column(String(5))  # CLAVEBULTOS
+    package_id: Mapped[Optional[int]] = mapped_column(ForeignKey("a76.packages.id"))
     package_quantity: Mapped[Optional[int]] = mapped_column(Integer)  # CANTBULTOS
-    package_description: Mapped[Optional[str]] = mapped_column(String(40))  # DESCBULTOS
     container_quantity: Mapped[Optional[int]] = mapped_column(SmallInteger)  # CANTBULCONT
     container_description: Mapped[Optional[str]] = mapped_column(String(40))  # DESCCONTENEDOR
     box_count: Mapped[Optional[str]] = mapped_column(String(30))  # NOCAJAS
     
     # Relationship (one-to-one)
-    line: Mapped["LineItem"] = relationship(back_populates="quantity")
\ No newline at end of file
+    line: Mapped["LineItem"] = relationship(back_populates="quantity")
+    package_info: Mapped[Optional["Package"]] = relationship(Package)
\ No newline at end of file
diff --git a/backend/api/v1/modules/a76/reports/importacion/packing_list/service.py b/backend/api/v1/modules/a76/reports/importacion/packing_list/service.py
index 43f0036d..a6163592 100644
--- a/backend/api/v1/modules/a76/reports/importacion/packing_list/service.py
+++ b/backend/api/v1/modules/a76/reports/importacion/packing_list/service.py
@@ -313,7 +313,7 @@ class PackingListService:
                     cantidad_importacion=qty.quantity if qty else 0,
                     unidad_medida=uom_comercial, # Commercial UOM (PCS, EA)
                     cantidad_bultos=int(qty.package_quantity) if qty and qty.package_quantity else 0,
-                    clave_bultos=(qty.package_key or "") if qty else "",
+                    clave_bultos=(qty.package_info.key if qty and qty.package_info else "") if qty else "",
                     peso_neto=self.formatear_numero(peso_neto_kg),
                     peso_bruto=self.formatear_numero(peso_bruto_kg),
                     peso_neto_lbs=self.formatear_numero(peso_neto_lb),
diff --git a/drop_column.sql b/drop_column.sql
new file mode 100644
index 00000000..c0845c83
--- /dev/null
+++ b/drop_column.sql
@@ -0,0 +1,2 @@
+ALTER TABLE a76.item_line_quantities
+DROP COLUMN IF EXISTS package_key;
\ No newline at end of file
diff --git a/drop_desc_column.sql b/drop_desc_column.sql
new file mode 100644
index 00000000..e8e26aa2
--- /dev/null
+++ b/drop_desc_column.sql
@@ -0,0 +1,2 @@
+ALTER TABLE a76.item_line_quantities
+DROP COLUMN IF EXISTS package_description;
\ No newline at end of file
diff --git a/fix_data.sql b/fix_data.sql
new file mode 100644
index 00000000..b3003427
--- /dev/null
+++ b/fix_data.sql
@@ -0,0 +1,10 @@
+-- Actualizar el nuevo campo package_id usando el valor numérico guardado erróneamente en package_key
+UPDATE a76.item_line_quantities
+SET
+    package_id = CAST(package_key AS INTEGER)
+WHERE
+    package_key ~ '^\d+$'
+    AND package_id IS NULL;
+
+-- Opcional: Limpiar el campo package_key si ya se migró (para evitar confusión futura, pero mejor dejarlo por seguridad)
+-- UPDATE a76.item_line_quantities SET package_key = NULL WHERE package_id IS NOT NULL;
\ No newline at end of file
diff --git a/fix_db_column.py b/fix_db_column.py
new file mode 100644
index 00000000..7145b2f4
--- /dev/null
+++ b/fix_db_column.py
@@ -0,0 +1,18 @@
+from sqlalchemy import text
+from core.database import SessionLocal
+
+def add_column():
+    db = SessionLocal()
+    try:
+        sql = text("ALTER TABLE a76.item_line_quantities ADD COLUMN IF NOT EXISTS package_id INTEGER REFERENCES a76.packages(id);")
+        db.execute(sql)
+        db.commit()
+        print("Successfully added package_id column.")
+    except Exception as e:
+        print(f"Error: {e}")
+        db.rollback()
+    finally:
+        db.close()
+
+if __name__ == "__main__":
+    add_column()
diff --git a/fix_schema.sql b/fix_schema.sql
new file mode 100644
index 00000000..7106b3c8
--- /dev/null
+++ b/fix_schema.sql
@@ -0,0 +1,2 @@
+ALTER TABLE a76.item_line_quantities
+ADD COLUMN IF NOT EXISTS package_id INTEGER REFERENCES a76.packages (id);
\ No newline at end of file