diff --git a/erpnext/buying/doctype/purchase_order/purchase_order.py b/erpnext/buying/doctype/purchase_order/purchase_order.py
index 3a08124..ef3cd06 100644
--- a/erpnext/buying/doctype/purchase_order/purchase_order.py
+++ b/erpnext/buying/doctype/purchase_order/purchase_order.py
@@ -137,7 +137,7 @@
 		date_diff = frappe.db.sql("select TIMEDIFF('%s', '%s')" % ( mod_db[0][0],cstr(self.modified)))
 
 		if date_diff and date_diff[0][0]:
-			msgprint(_("{0} {1} has been modified. Please refresh").format(self.doctype, self.name),
+			msgprint(_("{0} {1} has been modified. Please refresh.").format(self.doctype, self.name),
 				raise_exception=True)
 
 	def update_status(self, status):
diff --git a/erpnext/selling/doctype/sales_order/sales_order.py b/erpnext/selling/doctype/sales_order/sales_order.py
index c14612b..e0a7a1d 100644
--- a/erpnext/selling/doctype/sales_order/sales_order.py
+++ b/erpnext/selling/doctype/sales_order/sales_order.py
@@ -209,7 +209,7 @@
 		date_diff = frappe.db.sql("select TIMEDIFF('%s', '%s')" %
 			( mod_db, cstr(self.modified)))
 		if date_diff and date_diff[0][0]:
-			frappe.throw(_("{0} {1} has been modified. Please Refresh").format(self.doctype, self.name))
+			frappe.throw(_("{0} {1} has been modified. Please refresh.").format(self.doctype, self.name))
 
 	def stop_sales_order(self):
 		self.check_modified_date()