diff --git a/erpnext/manufacturing/doctype/bom_creator/bom_creator.py b/erpnext/manufacturing/doctype/bom_creator/bom_creator.py
index fd32d29fb50..2e726c92478 100644
--- a/erpnext/manufacturing/doctype/bom_creator/bom_creator.py
+++ b/erpnext/manufacturing/doctype/bom_creator/bom_creator.py
@@ -76,6 +76,37 @@ class BOMCreator(Document):
 
 	def validate(self):
 		self.validate_items()
+<<<<<<< HEAD
+=======
+		self.validate_duplicate_item()
+
+	def validate_duplicate_item(self):
+		# If same items added multiple times under same parent, raise error
+		item_map = {}
+		for row in self.items:
+			if not row.fg_reference_id:
+				continue
+
+			key = (row.item_code, row.fg_reference_id)
+			if key in item_map:
+				frappe.throw(
+					_(
+						"Item {0} added multiple times under the same parent item {1} at rows {2} and {3}"
+					).format(bold(row.item_code), bold(row.fg_item), item_map[key], row.idx),
+					title=_("Duplicate Item Under Same Parent"),
+				)
+			else:
+				item_map[key] = row.idx
+
+	def validate_finished_good(self):
+		is_stock_item = frappe.get_cached_value("Item", self.item_code, "is_stock_item")
+		if is_stock_item and self.is_phantom:
+			frappe.throw(_("Phantom BOM cannot be created for stock item {0}.").format(self.item_code))
+		elif not is_stock_item and not self.is_phantom:
+			frappe.throw(
+				_("Non-phantom BOM cannot be created for non-stock item {0}.").format(self.item_code)
+			)
+>>>>>>> 24209ae (fix(manufacturing): handle duplicate root BOM items (#58614))
 
 	def validate_items(self):
 		for row in self.items: