diff --git a/erpnext/hr/doctype/shift_assignment/shift_assignment.py b/erpnext/hr/doctype/shift_assignment/shift_assignment.py
index 4e829a3..5177302 100644
--- a/erpnext/hr/doctype/shift_assignment/shift_assignment.py
+++ b/erpnext/hr/doctype/shift_assignment/shift_assignment.py
@@ -19,8 +19,8 @@
 		validate_active_employee(self.employee)
 		self.validate_overlapping_dates()
 
-		if self.end_date and self.end_date <= self.start_date:
-			frappe.throw(_("End Date must not be lesser than Start Date"))
+		if self.end_date:
+			self.validate_from_to_dates('start_date', 'end_date')
 
 	def validate_overlapping_dates(self):
 		if not self.name: