diff --git a/erpnext/manufacturing/doctype/production_order/production_order.py b/erpnext/manufacturing/doctype/production_order/production_order.py
index 099efaa..26af40a 100644
--- a/erpnext/manufacturing/doctype/production_order/production_order.py
+++ b/erpnext/manufacturing/doctype/production_order/production_order.py
@@ -317,7 +317,7 @@
 	def validate_delivery_date(self):
 		if self.planned_start_date and self.expected_delivery_date \
 			and getdate(self.expected_delivery_date) < getdate(self.planned_start_date):
-				frappe.throw(_("Expected Delivery Date must be greater than Planned Start Date."))
+				frappe.msgprint(_("Expected Delivery Date is lesser than Planned Start Date."))
 
 	def delete_time_logs(self):
 		for time_log in frappe.get_all("Time Log", ["name"], {"production_order": self.name}):