From e9c1a09af3a6ffbe000cddd89bcb05b38868ea11 Mon Sep 17 00:00:00 2001
From: Nishka Gosalia <58264710+nishkagosalia@users.noreply.github.com>
Date: Thu, 9 Apr 2026 15:57:22 +0530
Subject: [PATCH] fix: update_nsm only in warehouse creation (#54165)

(cherry picked from commit b0e3fa3979e6efe6c9d230ac7e0812832b4563d2)
---
 erpnext/stock/doctype/warehouse/warehouse.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/erpnext/stock/doctype/warehouse/warehouse.py b/erpnext/stock/doctype/warehouse/warehouse.py
index a1991dd9c07..a19c35f26fa 100644
--- a/erpnext/stock/doctype/warehouse/warehouse.py
+++ b/erpnext/stock/doctype/warehouse/warehouse.py
@@ -65,7 +65,8 @@ class Warehouse(NestedSet):
 		self.warn_about_multiple_warehouse_account()
 
 	def on_update(self):
-		self.update_nsm_model()
+		if self.is_new() or self.has_value_changed("parent_warehouse"):
+			self.update_nsm_model()
 
 	def update_nsm_model(self):
 		frappe.utils.nestedset.update_nsm(self)