diff --git a/supplychain/init.py b/supplychain/init.py
index e5b62c8..508b7e0 100644
--- a/supplychain/init.py
+++ b/supplychain/init.py
@@ -300,10 +300,17 @@ async def update_supply_contract_item(request, params_kw):
 async def delete_supply_contract_item(request, params_kw):
     """Delete a supply contract item."""
     data = params_kw
+    item_id = data["id"]
     db, dbname = _get_sor()
     async with db.sqlorContext(dbname) as sor:
-        await sor.D("supply_contract_items", {"id": data["id"]})
-        return json.dumps({"status": "ok", "message": "删除成功"})
+        await sor.D("supply_contract_items", {"id": item_id})
+    # Also remove product_org_auth
+    async with DBPools().sqlorContext("sage") as sor_sage:
+        await sor_sage.sqlExe(
+            "DELETE FROM product_org_auth WHERE auth_source_id = ${sid}$",
+            {"sid": item_id}
+        )
+    return json.dumps({"status": "ok", "message": "删除成功"})
 
 
 # ============================================================
diff --git a/wwwroot/api/supply_contract_items_create.dspy b/wwwroot/api/supply_contract_items_create.dspy
index cc6848c..bb7b801 100644
--- a/wwwroot/api/supply_contract_items_create.dspy
+++ b/wwwroot/api/supply_contract_items_create.dspy
@@ -6,15 +6,29 @@ try:
     dbname = get_module_dbname('supplychain')
 
     data = dict(params_kw)
-    data['id'] = getID()
+    item_id = getID()
+    data['id'] = item_id
     data['resellerid'] = user_orgid
-    data['created_by'] = user_id
     data['created_at'] = timestampstr()
     data['updated_at'] = timestampstr()
 
+    product_id = data.get('productid')
+    contract_id = data.get('contract_id')
+
     async with DBPools().sqlorContext(dbname) as sor:
         await sor.C('supply_contract_items', data)
 
+    # Sync product_org_auth
+    if product_id:
+        async with DBPools().sqlorContext('sage') as sor_sage:
+            await sor_sage.C('product_org_auth', {
+                'id': getID(),
+                'product_id': product_id,
+                'org_id': user_orgid,
+                'auth_source': 'supply_contract',
+                'auth_source_id': item_id,
+            })
+
     result = {'widgettype': 'Message', 'options': {'title': 'Success', 'message': '供应合同项目创建成功', 'type': 'success'}}
 
 except Exception as e: