diff --git a/selling/doctype/installation_note/installation_note.py b/selling/doctype/installation_note/installation_note.py
index ed49aefdf9d..63e1bae3fa1 100644
--- a/selling/doctype/installation_note/installation_note.py
+++ b/selling/doctype/installation_note/installation_note.py
@@ -52,7 +52,6 @@ class DocType(TransactionBase):
 		sales_com_obj = get_obj(dt = 'Sales Common')
 		sales_com_obj.check_active_sales_items(self)
 		sales_com_obj.get_prevdoc_date(self)
-		self.validate_mandatory()
 		self.validate_reference_value()
  
 	def pull_delivery_note_details(self):
diff --git a/selling/doctype/quotation/quotation.py b/selling/doctype/quotation/quotation.py
index efc5412af87..c474d998c2e 100644
--- a/selling/doctype/quotation/quotation.py
+++ b/selling/doctype/quotation/quotation.py
@@ -158,7 +158,6 @@ class DocType(SellingController):
 			"Order Confirmed", "Order Lost", "Cancelled"])
 
 		self.validate_fiscal_year()
-		self.validate_mandatory()
 		self.set_last_contact_date()
 		self.validate_order_type()
 		self.validate_for_items()
diff --git a/stock/doctype/delivery_note/delivery_note.py b/stock/doctype/delivery_note/delivery_note.py
index d9b1bd2401a..fd74976ce69 100644
--- a/stock/doctype/delivery_note/delivery_note.py
+++ b/stock/doctype/delivery_note/delivery_note.py
@@ -124,7 +124,6 @@ class DocType(SellingController):
 		sales_com_obj.check_stop_sales_order(self)
 		sales_com_obj.check_active_sales_items(self)
 		sales_com_obj.get_prevdoc_date(self)
-		self.validate_mandatory()
 		self.validate_reference_value()
 		self.validate_for_items()
 		self.validate_warehouse()
diff --git a/support/doctype/support_ticket/support_ticket.js b/support/doctype/support_ticket/support_ticket.js
index 4226b47b475..4ea179dc871 100644
--- a/support/doctype/support_ticket/support_ticket.js
+++ b/support/doctype/support_ticket/support_ticket.js
@@ -27,8 +27,8 @@ $.extend(cur_frm.cscript, {
 	refresh: function(doc) {
 		erpnext.hide_naming_series();
 		cur_frm.cscript.make_listing(doc);
-		if(!doc.__islocal) {											
-			if(user_roles.indexOf("Support Manager")!==-1) {
+		if(!doc.__islocal) {
+			if(cur_frm.fields_dict.status.get_status()=="Write") {
 				if(doc.status!='Closed') cur_frm.add_custom_button('Close Ticket', cur_frm.cscript['Close Ticket']);
 				if(doc.status=='Closed') cur_frm.add_custom_button('Re-Open Ticket', cur_frm.cscript['Re-Open Ticket']);
 			}