diff --git a/controllers/buying_controller.py b/controllers/buying_controller.py
index cd822e6..0c25b98 100644
--- a/controllers/buying_controller.py
+++ b/controllers/buying_controller.py
@@ -47,13 +47,13 @@
 			self.set_total_in_words()
 	
 	def validate_warehouse_belongs_to_company(self):
-		for d in self.doclist.get({"warehouse": True}):
-			warehouse_company = webnotes.conn.get_value("Warehouse", d.warehouse, "company")
-			if warehouse_company and warehouse_company != self.doc.company:
+		for warehouse, company in webnotes.conn.get_values("Warehouse", 
+			self.doclist.get_distinct_values("warehouse"), "company").items():
+			if company and company != self.doc.company:
 				webnotes.msgprint(_("Warehouse must belong to company") + \
-					(": %s (%s, %s)" % (d.warehouse, warehouse_company, self.doc.company)),
+					(": %s (%s, %s)" % (warehouse, company, self.doc.company)),
 					raise_exception=WrongWarehouseCompany)
-	
+
 	def validate_stock_or_nonstock_items(self):
 		items = [d.item_code for d in self.doclist.get({"parentfield": self.fname})]
 		if self.stock_items:
diff --git a/home/page/latest_updates/latest_updates.js b/home/page/latest_updates/latest_updates.js
index b768f1a..e11b9c9 100644
--- a/home/page/latest_updates/latest_updates.js
+++ b/home/page/latest_updates/latest_updates.js
@@ -1,4 +1,6 @@
 erpnext.updates = [
+	["2nd May", ["Buying: Warehouse must belong to same company as transaction",
+		"Price List": "Added Currency Field. One price list can have only one currency"]],
 	["18th April", ["Cost Center: Set a default Cost Center for a Company"]],
 	["12th April", ["Employee: List of Leave Approvers who can approve the Employee's Leave Applications"]],
 	["10th April", ["Redesigned File Uploads and added File Manager in Setup"]],
diff --git a/setup/doctype/price_list/price_list.txt b/setup/doctype/price_list/price_list.txt
index a230f5b..bce8aae 100644
--- a/setup/doctype/price_list/price_list.txt
+++ b/setup/doctype/price_list/price_list.txt
@@ -2,7 +2,7 @@
  {
   "creation": "2013-01-25 11:35:09", 
   "docstatus": 0, 
-  "modified": "2013-01-22 14:56:41", 
+  "modified": "2013-05-02 14:44:24", 
   "modified_by": "Administrator", 
   "owner": "Administrator"
  }, 
@@ -53,12 +53,20 @@
   "reqd": 1
  }, 
  {
+  "doctype": "DocField", 
+  "fieldname": "currency", 
+  "fieldtype": "Link", 
+  "label": "Currency", 
+  "options": "Currency", 
+  "reqd": 1
+ }, 
+ {
   "depends_on": "price_list_name", 
   "doctype": "DocField", 
   "fieldname": "how_to_upload", 
   "fieldtype": "HTML", 
   "label": "How to upload", 
-  "options": "<div class=\"help\">Use the <a href=\"#data-import-tool\">Data Import Tool</a> to upload, update Item Prices in bulk:\n<ol> \n<li>Go to Data Import Tool.\n<li>Select \"Item\"\n<li>Check on \"With Data\"\n<li>Download \"Item Price\" from Child Tables.\n<li>Update the prices required and add new rows if required.\n<li>Check on \"Overwrite\"\n<li>Upload the modified sheet.\n</div>\n"
+  "options": "<div class=\"well\">Use the <a href=\"#data-import-tool\">Data Import Tool</a> to upload, update Item Prices in bulk:\n<ol> \n<li>Go to Data Import Tool.\n<li>Select \"Item\"\n<li>Check on \"With Data\"\n<li>Download \"Item Price\" from Child Tables.\n<li>Update the prices required and add new rows if required.\n<li>Check on \"Overwrite\"\n<li>Upload the modified sheet.\n</div>\n"
  }, 
  {
   "cancel": 0, 
@@ -78,7 +86,6 @@
   "cancel": 1, 
   "create": 1, 
   "doctype": "DocPerm", 
-  "match": "", 
   "role": "Sales Master Manager", 
   "write": 1
  }
diff --git a/setup/doctype/price_list/test_price_list.py b/setup/doctype/price_list/test_price_list.py
index 53b86a3..30262dc 100644
--- a/setup/doctype/price_list/test_price_list.py
+++ b/setup/doctype/price_list/test_price_list.py
@@ -1,6 +1,7 @@
 test_records = [
 	[{
 		"doctype": "Price List",
-		"price_list_name": "_Test Price List"
+		"price_list_name": "_Test Price List",
+		"currency": "INR"
 	}]
 ]
\ No newline at end of file
diff --git a/stock/doctype/item/item.js b/stock/doctype/item/item.js
index 8b3e044..2635f3e 100644
--- a/stock/doctype/item/item.js
+++ b/stock/doctype/item/item.js
@@ -14,6 +14,8 @@
 // You should have received a copy of the GNU General Public License
 // along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
+cur_frm.add_fetch("price_list_name", "currency", "ref_currency")
+
 cur_frm.cscript.refresh = function(doc) {
 	// make sensitive fields(has_serial_no, is_stock_item, valuation_method)
 	// read only if any stock ledger entry exists
diff --git a/stock/doctype/item/item.py b/stock/doctype/item/item.py
index 6b6dfb3..8a804d8 100644
--- a/stock/doctype/item/item.py
+++ b/stock/doctype/item/item.py
@@ -23,6 +23,9 @@
 from webnotes import msgprint, _
 
 from webnotes.model.controller import DocListController
+
+class PriceListCurrencyMismatch(Exception): pass
+
 class DocType(DocListController):
 	def validate(self):
 		if not self.doc.stock_uom:
@@ -33,7 +36,7 @@
 		self.add_default_uom_in_conversion_factor_table()
 		self.valiadte_item_type()
 		self.check_for_active_boms()
-		self.check_ref_rate_detail()
+		self.validate_price_lists()
 		self.fill_customer_code()
 		self.check_item_tax()
 		self.validate_barcode()
@@ -121,16 +124,21 @@
 				if cstr(self.doc.fields.get(d)) != 'Yes':
 					_check_for_active_boms(fl[d])
 			
-	def check_ref_rate_detail(self):
-		check_list=[]
+	def validate_price_lists(self):
+		price_lists=[]
 		for d in getlist(self.doclist,'ref_rate_details'):
-			if [cstr(d.price_list_name), cstr(d.ref_currency), 
-					cint(d.selling), cint(d.buying)] in check_list:
-				msgprint("Ref Rate is entered twice for Price List : '%s' and Currency : '%s'." % 
-					(d.price_list_name,d.ref_currency), raise_exception=1)
+			if d.price_list_name in price_lists:
+				msgprint(_("Cannot have two prices for same Price List") + ": " + d.price_list_name,
+					raise_exception= webnotes.DuplicateEntryError)
 			else:
-				check_list.append([cstr(d.price_list_name),cstr(d.ref_currency)])
-	
+				price_list_currency = webnotes.conn.get_value("Price List", d.price_list_name, "currency")
+				if price_list_currency and d.ref_currency != price_list_currency:
+					msgprint(_("Currency does not match Price List Currency for Price List") \
+						+ ": " + d.price_list_name, raise_exception=PriceListCurrencyMismatch)
+				
+				price_lists.append(d.price_list_name)
+			
+					
 	def fill_customer_code(self):
 		""" Append all the customer codes and insert into "customer_code" field of item table """
 		cust_code=[]
diff --git a/stock/doctype/item/test_item.py b/stock/doctype/item/test_item.py
index dbbeecc..f5a688c 100644
--- a/stock/doctype/item/test_item.py
+++ b/stock/doctype/item/test_item.py
@@ -20,6 +20,22 @@
 
 test_ignore = ["BOM"]
 
+class TestItem(unittest.TestCase):
+	def test_duplicate_price_list(self):
+		item = webnotes.bean(copy=test_records[0])
+		item.doc.item_code = "_Test Item 10"
+		item_price = item.doclist.get({"doctype": "Item Price"})[0]
+		item.doclist.append(webnotes.doc(item_price.fields.copy()))
+		self.assertRaises(webnotes.DuplicateEntryError, item.insert)
+
+	def test_price_list_mismatch(self):
+		from stock.doctype.item.item import PriceListCurrencyMismatch
+		item = webnotes.bean(copy=test_records[0])
+		item.doc.item_code = "_Test Item 11"
+		item_price = item.doclist.get({"doctype": "Item Price"})[0].ref_currency="USD"
+		self.assertRaises(PriceListCurrencyMismatch, item.insert)
+
+
 test_records = [
 	[{
 		"doctype": "Item",
@@ -45,7 +61,14 @@
 		"warehouse": "_Test Warehouse",
 		"warehouse_reorder_level": 20,
 		"warehouse_reorder_qty": 20
-	}],
+	}, {
+		"doctype": "Item Price",
+		"parentfield": "ref_rate_details",
+		"price_list_name": "_Test Price List",
+		"ref_rate": 100,
+		"ref_currency": "INR"
+	}
+	],
 	[{
 		"doctype": "Item",
 		"item_code": "_Test Item Home Desktop 100",