diff --git a/setup/doctype/naming_series/naming_series.py b/setup/doctype/naming_series/naming_series.py
index 527ec6e..51ca437 100644
--- a/setup/doctype/naming_series/naming_series.py
+++ b/setup/doctype/naming_series/naming_series.py
@@ -140,14 +140,28 @@
 	if naming_series:
 		make_property_setter(doctype, "naming_series", "hidden", 0, "Check")
 		make_property_setter(doctype, "naming_series", "reqd", 1, "Check")
+
+		# set values for mandatory
+		webnotes.conn.sql("""update `tab{doctype}` set naming_series={s} where 
+			ifnull(naming_series, '')=''""".format(doctyp=doctype, s="%s"), get_default_naming_series(doctype))
+
 		if hide_name_field:
 			make_property_setter(doctype, fieldname, "reqd", 0, "Check")
 			make_property_setter(doctype, fieldname, "hidden", 1, "Check")
 	else:
 		make_property_setter(doctype, "naming_series", "reqd", 0, "Check")
 		make_property_setter(doctype, "naming_series", "hidden", 1, "Check")
+
 		if hide_name_field:
 			make_property_setter(doctype, fieldname, "hidden", 0, "Check")
 			make_property_setter(doctype, fieldname, "reqd", 1, "Check")
+			
+			# set values for mandatory
+			webnotes.conn.sql("""update `tab{doctype}` set `{fieldname}`=`name` where 
+				ifnull({fieldname}, '')=''""".format(doctyp=doctype, fieldname=fieldname))
 		
-	
\ No newline at end of file
+def get_default_naming_series(doctype):
+	from webnotes.model.doctype import get_property
+	naming_series = get_property(doctype, "options", "naming_series")
+	naming_series = naming_series.split("\n")
+	return naming_series[0] or naming_series[1]	
\ No newline at end of file
diff --git a/support/doctype/newsletter/newsletter.py b/support/doctype/newsletter/newsletter.py
index 8e45768..b480b7d 100644
--- a/support/doctype/newsletter/newsletter.py
+++ b/support/doctype/newsletter/newsletter.py
@@ -111,6 +111,7 @@
 def create_lead(email_id):
 	"""create a lead if it does not exist"""
 	from email.utils import parseaddr
+	from webnotes.model.doc import get_default_naming_series
 	real_name, email_id = parseaddr(email_id)
 	
 	if webnotes.conn.get_value("Lead", {"email_id": email_id}):
@@ -121,24 +122,8 @@
 		"email_id": email_id,
 		"lead_name": real_name or email_id,
 		"status": "Contacted",
-		"naming_series": get_lead_naming_series(),
+		"naming_series": get_default_naming_series("Lead"),
 		"company": webnotes.conn.get_default("company"),
 		"source": "Email"
 	})
-	lead.insert()
-	
-def get_lead_naming_series():
-	"""gets lead's default naming series"""
-	lead_naming_series = None
-	naming_series_field = webnotes.get_doctype("Lead").get_field("naming_series")
-	if naming_series_field.default:
-		lead_naming_series = naming_series_field.default
-	else:
-		latest_naming_series = webnotes.conn.sql("""select naming_series
-			from `tabLead` order by creation desc limit 1""")
-		if latest_naming_series:
-			lead_naming_series = latest_naming_series[0][0]
-		else:
-			lead_naming_series = filter(None, naming_series_field.options.split("\n"))[0]
-	
-	return lead_naming_series
+	lead.insert()
\ No newline at end of file