diff --git a/models/inventory.py b/models/inventory.py
index 5498788..38eed4a 100644
--- a/models/inventory.py
+++ b/models/inventory.py
@@ -21,7 +21,7 @@ class Inventory(db.Model):
     timestamp: Mapped[datetime.datetime] = mapped_column('Date Entered', DateTime)
     condition: Mapped[str] = mapped_column('Working Condition', Unicode(255))
     needed: Mapped[str] = mapped_column("Needed", Unicode(255))
-    type_id: Mapped[int] = mapped_column('Item Type', Integer, ForeignKey("Items.ID"))
+    type_id: Mapped[Optional[int]] = mapped_column('Item Type', Integer, ForeignKey("Items.ID"), nullable=True)
     inventory_name: Mapped[Optional[str]] = mapped_column('Inventory #', Unicode(255))
     serial: Mapped[Optional[str]] = mapped_column('Serial #', Unicode(255))
     model: Mapped[Optional[str]] = mapped_column('Model #', Unicode(255))
@@ -39,7 +39,7 @@ class Inventory(db.Model):
     item: Mapped['Item'] = relationship('Item', back_populates='inventory')
     work_logs: Mapped[List['WorkLog']] = relationship('WorkLog', back_populates='work_item')
 
-    def __init__(self, timestamp: datetime.datetime, condition: str, needed: str, type_id: int,
+    def __init__(self, timestamp: datetime.datetime, condition: str, needed: str, type_id: Optional[int] = None,
                     inventory_name: Optional[str] = None, serial: Optional[str] = None,
                     model: Optional[str] = None, notes: Optional[str] = None, owner_id: Optional[int] = None,
                     brand_id: Optional[int] = None, location_id: Optional[str] = None, barcode: Optional[str] = None,
@@ -109,8 +109,10 @@ class Inventory(db.Model):
     
     @classmethod
     def from_dict(cls, data: dict[str, Any]) -> "Inventory":
+        timestamp_str = data.get("timestamp")
+        
         return cls(
-            timestamp=datetime.datetime.fromisoformat(data.get("timestamp")) if data.get("timestamp") else datetime.datetime.now(),
+            timestamp = datetime.datetime.fromisoformat(str(timestamp_str)) if timestamp_str else datetime.datetime.now(),
             condition=data.get("condition", "Unverified"),
             needed=data.get("needed", ""),
             type_id=data["type_id"],