diff --git a/erpnext/accounts/doctype/gl_entry/gl_entry.py b/erpnext/accounts/doctype/gl_entry/gl_entry.py
index ae4dae0..4e7928d 100644
--- a/erpnext/accounts/doctype/gl_entry/gl_entry.py
+++ b/erpnext/accounts/doctype/gl_entry/gl_entry.py
@@ -10,8 +10,8 @@
 from frappe.model.document import Document
 
 class GLEntry(Document):
-
 	def validate(self):
+		self.flags.ignore_submit_comment = True
 		self.check_mandatory()
 		self.pl_must_have_cost_center()
 		self.validate_posting_date()
diff --git a/erpnext/accounts/report/gross_profit/gross_profit.py b/erpnext/accounts/report/gross_profit/gross_profit.py
index 5ede882..618c9cf 100644
--- a/erpnext/accounts/report/gross_profit/gross_profit.py
+++ b/erpnext/accounts/report/gross_profit/gross_profit.py
@@ -98,7 +98,7 @@
 
 			row.base_amount = flt(row.base_net_amount)
 
-			sales_boms = self.sales_boms.get(row.parenttype, {}).get(row.name, frappe._dict())
+			sales_boms = self.sales_boms.get(row.parenttype, {}).get(row.parent, frappe._dict())
 
 			# get buying amount
 			if row.item_code in sales_boms:
@@ -158,7 +158,7 @@
 
 	def get_buying_amount_from_sales_bom(self, row, sales_bom):
 		buying_amount = 0.0
-		for bom_item in sales_bom[row.item_code]:
+		for bom_item in sales_bom:
 			if bom_item.get("parent_detail_docname")==row.item_row:
 				buying_amount += self.get_buying_amount(row, bom_item.item_code)
 
@@ -174,14 +174,17 @@
 			return flt(row.qty) * item_rate
 
 		else:
-			if row.dn_detail:
-				row.parenttype = "Delivery Note"
-				row.parent = row.delivery_note
-				row.item_row = row.dn_detail
+			if row.update_stock or row.dn_detail:
+				if row.dn_detail:
+					row.parenttype = "Delivery Note"
+					row.parent = row.delivery_note
+					row.item_row = row.dn_detail
 
 				my_sle = self.sle.get((item_code, row.warehouse))
 				for i, sle in enumerate(my_sle):
 					# find the stock valution rate from stock ledger entry
+					print sle.voucher_type, row.parenttype, sle.voucher_no, row.parent, \
+						sle.voucher_detail_no, row.item_row
 					if sle.voucher_type == row.parenttype and row.parent == sle.voucher_no and \
 						sle.voucher_detail_no == row.item_row:
 							previous_stock_value = len(my_sle) > i+1 and \
@@ -215,7 +218,7 @@
 		if self.filters.to_date:
 			conditions += " and posting_date <= %(to_date)s"
 
-		self.si_list = frappe.db.sql("""select item.parenttype, si.name,
+		self.si_list = frappe.db.sql("""select item.parenttype, item.parent, 
 				si.posting_date, si.posting_time, si.project_name, si.update_stock,
 				si.customer, si.customer_group, si.territory,
 				item.item_code, item.item_name, item.description, item.warehouse,
diff --git a/erpnext/selling/doctype/sms_center/sms_center.json b/erpnext/selling/doctype/sms_center/sms_center.json
index e3b4243..c966ef3 100644
--- a/erpnext/selling/doctype/sms_center/sms_center.json
+++ b/erpnext/selling/doctype/sms_center/sms_center.json
@@ -37,6 +37,15 @@
    "permlevel": 0
   }, 
   {
+   "depends_on": "eval:doc.send_to=='All Sales Partner Contact'", 
+   "fieldname": "sales_partner", 
+   "fieldtype": "Link", 
+   "label": "Sales Partner", 
+   "options": "Sales Partner", 
+   "permlevel": 0, 
+   "precision": ""
+  }, 
+  {
    "depends_on": "eval:doc.send_to=='All Employee (Active)'", 
    "fieldname": "department", 
    "fieldtype": "Link", 
@@ -108,7 +117,7 @@
  "idx": 1, 
  "in_create": 0, 
  "issingle": 1, 
- "modified": "2015-02-05 05:11:46.773913", 
+ "modified": "2015-05-25 17:46:37.555503", 
  "modified_by": "Administrator", 
  "module": "Selling", 
  "name": "SMS Center", 
diff --git a/erpnext/selling/report/sales_person_wise_transaction_summary/sales_person_wise_transaction_summary.py b/erpnext/selling/report/sales_person_wise_transaction_summary/sales_person_wise_transaction_summary.py
index 0dee7ab..e102f0d 100644
--- a/erpnext/selling/report/sales_person_wise_transaction_summary/sales_person_wise_transaction_summary.py
+++ b/erpnext/selling/report/sales_person_wise_transaction_summary/sales_person_wise_transaction_summary.py
@@ -34,7 +34,7 @@
 
 def get_entries(filters):
 	date_field = filters["doc_type"] == "Sales Order" and "transaction_date" or "posting_date"
-	conditions, items = get_conditions(filters, date_field)
+	conditions, values = get_conditions(filters, date_field)
 	entries = frappe.db.sql("""select dt.name, dt.customer, dt.territory, dt.%s as posting_date,
 		dt_item.item_code, dt_item.qty, dt_item.base_net_amount, st.sales_person,
 		st.allocated_percentage, dt_item.base_net_amount*st.allocated_percentage/100 as contribution_amt
@@ -42,31 +42,33 @@
 		where st.parent = dt.name and dt.name = dt_item.parent and st.parenttype = %s
 		and dt.docstatus = 1 %s order by st.sales_person, dt.name desc""" %
 		(date_field, filters["doc_type"], filters["doc_type"], '%s', conditions),
-		tuple([filters["doc_type"]] + items), as_dict=1)
+		tuple([filters["doc_type"]] + values), as_dict=1)
 
 	return entries
 
 def get_conditions(filters, date_field):
-	conditions = ""
-	if filters.get("company"): conditions += " and dt.company = '%s'" % \
-		filters["company"].replace("'", "\'")
-	if filters.get("customer"): conditions += " and dt.customer = '%s'" % \
-		filters["customer"].replace("'", "\'")
-	if filters.get("territory"): conditions += " and dt.territory = '%s'" % \
-		filters["territory"].replace("'", "\'")
-
-	if filters.get("from_date"): conditions += " and dt.%s >= '%s'" % \
-		(date_field, filters["from_date"])
-	if filters.get("to_date"): conditions += " and dt.%s <= '%s'" % (date_field, filters["to_date"])
-
-	if filters.get("sales_person"): conditions += " and st.sales_person = '%s'" % \
-	 	filters["sales_person"].replace("'", "\'")
+	conditions = [""]
+	values = []
+	
+	for field in ["company", "customer", "territory", "sales_person"]:
+		if filters.get(field):
+			conditions.append("dt.{0}=%s".format(field))
+			values.append(filters[field])
+		
+	if filters.get("from_date"):
+		conditions.append("dt.{0}>=%s".format(date_field))
+		values.append(filters["from_date"])
+		
+	if filters.get("to_date"):
+		conditions.append("dt.{0}<=%s".format(date_field))
+		values.append(filters["to_date"])
 
 	items = get_items(filters)
 	if items:
-		conditions += " and dt_item.item_code in (%s)" % ', '.join(['%s']*len(items))
+		conditions.append("dt_item.item_code in (%s)" % ', '.join(['%s']*len(items)))
+		values += items
 
-	return conditions, items
+	return " and ".join(conditions), values
 
 def get_items(filters):
 	if filters.get("item_group"): key = "item_group"
diff --git a/erpnext/setup/doctype/company/company.py b/erpnext/setup/doctype/company/company.py
index d358928..6c67e60 100644
--- a/erpnext/setup/doctype/company/company.py
+++ b/erpnext/setup/doctype/company/company.py
@@ -27,8 +27,12 @@
 		return exists
 
 	def validate(self):
+		self.abbr = self.abbr.strip()
 		if self.get('__islocal') and len(self.abbr) > 5:
 			frappe.throw(_("Abbreviation cannot have more than 5 characters"))
+			
+		if not self.abbr.strip():
+			frappe.throw(_("Abbr can not be blank or space"))
 
 		self.previous_default_currency = frappe.db.get_value("Company", self.name, "default_currency")
 		if self.default_currency and self.previous_default_currency and \
@@ -174,6 +178,10 @@
 		"""
 			Trash accounts and cost centers for this company if no gl entry exists
 		"""
+		accounts = frappe.db.sql_list("select name from tabAccount where company=%s", self.name)
+		cost_centers = frappe.db.sql_list("select name from `tabCost Center` where company=%s", self.name)
+		warehouses = frappe.db.sql_list("select name from tabWarehouse where company=%s", self.name)
+		
 		rec = frappe.db.sql("SELECT name from `tabGL Entry` where company = %s", self.name)
 		if not rec:
 			# delete Account
@@ -192,23 +200,43 @@
 			frappe.db.sql("""delete from `tabWarehouse` where company=%s""", self.name)
 
 		frappe.defaults.clear_default("company", value=self.name)
+		
+		# clear default accounts, warehouses from item
+		for f in ["default_warehouse", "website_warehouse"]:
+			frappe.db.sql("""update tabItem set %s=NULL where %s in (%s)""" 
+				% (f, f, ', '.join(['%s']*len(warehouses))), tuple(warehouses))
+				
+		frappe.db.sql("""delete from `tabItem Reorder` where warehouse in (%s)""" 
+			% ', '.join(['%s']*len(warehouses)), tuple(warehouses))
+				
+		for f in ["income_account", "expense_account"]:
+			frappe.db.sql("""update tabItem set %s=NULL where %s in (%s)""" 
+				% (f, f, ', '.join(['%s']*len(accounts))), tuple(accounts))
+				
+		for f in ["selling_cost_center", "buying_cost_center"]:
+			frappe.db.sql("""update tabItem set %s=NULL where %s in (%s)""" 
+				% (f, f, ', '.join(['%s']*len(cost_centers))), tuple(cost_centers))
 
+		# reset default company
 		frappe.db.sql("""update `tabSingles` set value=""
 			where doctype='Global Defaults' and field='default_company'
 			and value=%s""", self.name)
 
 @frappe.whitelist()
 def replace_abbr(company, old, new):
+	new = new.strip()
+	if not new:
+		frappe.throw(_("Abbr can not be blank or space"))
+		
 	frappe.only_for("System Manager")
 
 	frappe.db.set_value("Company", company, "abbr", new)
 
 	def _rename_record(dt):
 		for d in frappe.db.sql("select name from `tab%s` where company=%s" % (dt, '%s'), company):
-			parts = d[0].split(" - ")
-			if parts[-1].lower() == old.lower():
-				name_without_abbr = " - ".join(parts[:-1])
-				frappe.rename_doc(dt, d[0], name_without_abbr + " - " + new)
+			parts = d[0].rsplit(" - ", 1)
+			if len(parts) == 1 or parts[1].lower() == old.lower():
+				frappe.rename_doc(dt, d[0], parts[0] + " - " + new)
 
 	for dt in ["Account", "Cost Center", "Warehouse"]:
 		_rename_record(dt)
diff --git a/erpnext/setup/doctype/sales_person/sales_person.py b/erpnext/setup/doctype/sales_person/sales_person.py
index 5f70b23..8542c88 100644
--- a/erpnext/setup/doctype/sales_person/sales_person.py
+++ b/erpnext/setup/doctype/sales_person/sales_person.py
@@ -29,5 +29,7 @@
 				return frappe.db.get_value("User", user, "email") or user
 
 	def validate_employee_id(self):
-		if frappe.db.exists({"doctype": "Sales Person","employee": self.employee}):
-			frappe.throw("Another sales person with the same employee id exists.", frappe.DuplicateEntryError)
+		sales_person = frappe.db.get_value("Sales Person", {"employee": self.employee})
+		
+		if sales_person and sales_person != self.name:
+			frappe.throw(_("Another Sales Person {0} exists with the same Employee id").format(sales_person))
diff --git a/erpnext/setup/page/setup_wizard/setup_wizard.py b/erpnext/setup/page/setup_wizard/setup_wizard.py
index b80d55e..819e244 100644
--- a/erpnext/setup/page/setup_wizard/setup_wizard.py
+++ b/erpnext/setup/page/setup_wizard/setup_wizard.py
@@ -28,7 +28,7 @@
 
 		args = frappe._dict(args)
 
-		if args.language != "english":
+		if args.language and args.language != "english":
 			set_default_language(args.language)
 
 		install_fixtures.install(args.get("country"))
diff --git a/erpnext/stock/doctype/delivery_note/delivery_note.py b/erpnext/stock/doctype/delivery_note/delivery_note.py
index 831e537..f52f7e5 100644
--- a/erpnext/stock/doctype/delivery_note/delivery_note.py
+++ b/erpnext/stock/doctype/delivery_note/delivery_note.py
@@ -110,7 +110,8 @@
 	def validate_with_previous_doc(self):
 		items = self.get("items")
 
-		for fn in (("Sales Order", "against_sales_order"), ("Sales Invoice", "against_sales_invoice")):
+		for fn in (("Sales Order", "against_sales_order", "so_detail"), 
+				("Sales Invoice", "against_sales_invoice", "si_detail")):
 			if filter(None, [getattr(d, fn[1], None) for d in items]):
 				super(DeliveryNote, self).validate_with_previous_doc({
 					fn[0]: {
@@ -123,7 +124,7 @@
 				if cint(frappe.defaults.get_global_default('maintain_same_sales_rate')):
 					super(DeliveryNote, self).validate_with_previous_doc({
 						fn[0] + " Item": {
-							"ref_dn_field": "so_detail",
+							"ref_dn_field": fn[2],
 							"compare_fields": [["rate", "="]],
 							"is_child_table": True
 						}
diff --git a/erpnext/stock/doctype/stock_entry/stock_entry.js b/erpnext/stock/doctype/stock_entry/stock_entry.js
index c7810fd..1135bc7 100644
--- a/erpnext/stock/doctype/stock_entry/stock_entry.js
+++ b/erpnext/stock/doctype/stock_entry/stock_entry.js
@@ -445,10 +445,11 @@
 			args: args,
 			callback: function(r) {
 				if(r.message) {
+					var d = locals[cdt][cdn];
 					$.each(r.message, function(k, v) {
 						d[k] = v;
 					});
-				refresh_field('items');
+					refresh_field("items");
 				}
 			}
 		});
diff --git a/erpnext/stock/doctype/stock_ledger_entry/stock_ledger_entry.py b/erpnext/stock/doctype/stock_ledger_entry/stock_ledger_entry.py
index 97e7c20..de6b3a6 100644
--- a/erpnext/stock/doctype/stock_ledger_entry/stock_ledger_entry.py
+++ b/erpnext/stock/doctype/stock_ledger_entry/stock_ledger_entry.py
@@ -14,6 +14,7 @@
 
 class StockLedgerEntry(Document):
 	def validate(self):
+		self.flags.ignore_submit_comment = True
 		from erpnext.stock.utils import validate_warehouse_company
 		self.validate_mandatory()
 		self.validate_item()