diff --git a/erpnext/stock/doctype/item/item.json b/erpnext/stock/doctype/item/item.json
index 88c1c0b07d3..5ddef1c24f6 100644
--- a/erpnext/stock/doctype/item/item.json
+++ b/erpnext/stock/doctype/item/item.json
@@ -318,7 +318,8 @@
    "fieldname": "shelf_life_in_days",
    "fieldtype": "Int",
    "label": "Shelf Life In Days",
-   "mandatory_depends_on": "eval:doc.has_batch_no && doc.has_expiry_date"
+   "mandatory_depends_on": "eval:doc.has_batch_no && doc.has_expiry_date",
+   "non_negative": 1
   },
   {
    "default": "2099-12-31",
@@ -362,7 +363,8 @@
    "depends_on": "is_stock_item",
    "fieldname": "weight_per_unit",
    "fieldtype": "Float",
-   "label": "Weight Per Unit"
+   "label": "Weight Per Unit",
+   "non_negative": 1
   },
   {
    "depends_on": "eval:doc.is_stock_item",
@@ -534,13 +536,15 @@
    "fieldname": "min_order_qty",
    "fieldtype": "Float",
    "label": "Minimum Order Qty",
+   "non_negative": 1,
    "oldfieldname": "min_order_qty",
    "oldfieldtype": "Currency"
   },
   {
    "fieldname": "safety_stock",
    "fieldtype": "Float",
-   "label": "Safety Stock"
+   "label": "Safety Stock",
+   "non_negative": 1
   },
   {
    "fieldname": "purchase_details_cb",
@@ -551,6 +555,7 @@
    "fieldname": "lead_time_days",
    "fieldtype": "Int",
    "label": "Lead Time in days",
+   "non_negative": 1,
    "oldfieldname": "lead_time_days",
    "oldfieldtype": "Int"
   },
@@ -559,6 +564,7 @@
    "fieldtype": "Float",
    "label": "Last Purchase Rate",
    "no_copy": 1,
+   "non_negative": 1,
    "oldfieldname": "last_purchase_rate",
    "oldfieldtype": "Currency",
    "read_only": 1
@@ -889,7 +895,7 @@
  "image_field": "image",
  "links": [],
  "make_attachments_public": 1,
- "modified": "2025-02-03 23:43:57.253667",
+ "modified": "2025-08-08 14:58:48.674193",
  "modified_by": "Administrator",
  "module": "Stock",
  "name": "Item",
@@ -954,6 +960,7 @@
   }
  ],
  "quick_entry": 1,
+ "row_format": "Dynamic",
  "search_fields": "item_name,description,item_group,customer_code",
  "show_name_in_global_search": 1,
  "show_preview_popup": 1,
@@ -962,4 +969,4 @@
  "states": [],
  "title_field": "item_name",
  "track_changes": 1
-}
\ No newline at end of file
+}