diff --git a/erpnext/selling/doctype/sales_order/sales_order.py b/erpnext/selling/doctype/sales_order/sales_order.py
index 8710c5b..5aa3b9c 100755
--- a/erpnext/selling/doctype/sales_order/sales_order.py
+++ b/erpnext/selling/doctype/sales_order/sales_order.py
@@ -5,7 +5,7 @@
 import frappe
 import json
 import frappe.utils
-from frappe.utils import cstr, flt, getdate, comma_and, cint, nowdate, add_days
+from frappe.utils import cstr, flt, getdate, cint, nowdate, add_days, get_link_to_form
 from frappe import _
 from six import string_types
 from frappe.model.utils import get_fetch_values
@@ -221,8 +221,9 @@
 			where t1.name = t2.parent and t2.against_sales_order = %s and t1.docstatus = 1""", self.name)
 
 		if submit_dn:
+			submit_dn = [get_link_to_form("Delivery Note", dn) for dn in submit_dn]
 			frappe.throw(_("Delivery Notes {0} must be cancelled before cancelling this Sales Order")
-				.format(comma_and(submit_dn)))
+				.format(", ".join(submit_dn)))
 
 		# Checks Sales Invoice
 		submit_rv = frappe.db.sql_list("""select t1.name
@@ -231,8 +232,9 @@
 			self.name)
 
 		if submit_rv:
+			submit_rv = [get_link_to_form("Sales Invoice", si) for si in submit_rv]
 			frappe.throw(_("Sales Invoice {0} must be cancelled before cancelling this Sales Order")
-				.format(comma_and(submit_rv)))
+				.format(", ".join(submit_rv)))
 
 		#check maintenance schedule
 		submit_ms = frappe.db.sql_list("""
@@ -241,8 +243,9 @@
 			where t2.parent=t1.name and t2.sales_order = %s and t1.docstatus = 1""", self.name)
 
 		if submit_ms:
+			submit_ms = [get_link_to_form("Maintenance Schedule", ms) for ms in submit_ms]
 			frappe.throw(_("Maintenance Schedule {0} must be cancelled before cancelling this Sales Order")
-				.format(comma_and(submit_ms)))
+				.format(", ".join(submit_ms)))
 
 		# check maintenance visit
 		submit_mv = frappe.db.sql_list("""
@@ -251,8 +254,9 @@
 			where t2.parent=t1.name and t2.prevdoc_docname = %s and t1.docstatus = 1""",self.name)
 
 		if submit_mv:
+			submit_mv = [get_link_to_form("Maintenance Visit", mv) for mv in submit_mv]
 			frappe.throw(_("Maintenance Visit {0} must be cancelled before cancelling this Sales Order")
-				.format(comma_and(submit_mv)))
+				.format(", ".join(submit_mv)))
 
 		# check work order
 		pro_order = frappe.db.sql_list("""
@@ -261,8 +265,9 @@
 			where sales_order = %s and docstatus = 1""", self.name)
 
 		if pro_order:
+			pro_order = [get_link_to_form("Work Order", po) for po in pro_order]
 			frappe.throw(_("Work Order {0} must be cancelled before cancelling this Sales Order")
-				.format(comma_and(pro_order)))
+				.format(", ".join(pro_order)))
 
 	def check_modified_date(self):
 		mod_db = frappe.db.get_value("Sales Order", self.name, "modified")