fix: validation message for valuation rate (backport #37301) (#37351)

fix: validation message for valuation rate (#37301)

(cherry picked from commit 643bb0511ce6b858d84613d08b551b7f15c6364a)

Co-authored-by: rohitwaghchaure <rohitw1991@gmail.com>
diff --git a/erpnext/controllers/selling_controller.py b/erpnext/controllers/selling_controller.py
index 9014662..418a56f 100644
--- a/erpnext/controllers/selling_controller.py
+++ b/erpnext/controllers/selling_controller.py
@@ -288,7 +288,9 @@
 			last_valuation_rate_in_sales_uom = last_valuation_rate * (item.conversion_factor or 1)
 
 			if flt(item.base_net_rate) < flt(last_valuation_rate_in_sales_uom):
-				throw_message(item.idx, item.item_name, last_valuation_rate_in_sales_uom, "valuation rate")
+				throw_message(
+					item.idx, item.item_name, last_valuation_rate_in_sales_uom, "valuation rate (Moving Average)"
+				)
 
 	def get_item_list(self):
 		il = []