[minor] calculate price list rate based on items uom
diff --git a/erpnext/controllers/accounts_controller.py b/erpnext/controllers/accounts_controller.py
index ecbf59d..bcdfe5f 100644
--- a/erpnext/controllers/accounts_controller.py
+++ b/erpnext/controllers/accounts_controller.py
@@ -186,7 +186,6 @@
 
 					ret = get_item_details(args)
 
-
 					for fieldname, value in ret.items():
 						if item.meta.get_field(fieldname) and value is not None:
 							if (item.get(fieldname) is None or fieldname in force_item_fields):
@@ -200,6 +199,10 @@
 								if stock_qty != len(item.get('serial_no').split('\n')):
 									item.set(fieldname, value)
 
+							elif fieldname in ["conversion_factor", "price_list_rate"]:
+								if for_validate and not item.get(fieldname):
+									item.set(fieldname, value)
+
 					if ret.get("pricing_rule"):
 						# if user changed the discount percentage then set user's discount percentage ?
 						item.set("discount_percentage", ret.get("discount_percentage"))