diff --git a/erpnext/manufacturing/doctype/bom/bom.js b/erpnext/manufacturing/doctype/bom/bom.js
index 4f08bbc3fc7..0051ad9dffd 100644
--- a/erpnext/manufacturing/doctype/bom/bom.js
+++ b/erpnext/manufacturing/doctype/bom/bom.js
@@ -43,8 +43,7 @@ frappe.ui.form.on("BOM", {
 
 		frm.set_query("item_code", "items", function() {
 			return {
-				query: "erpnext.controllers.queries.item_query",
-				filters: [["Item", "name", "!=", cur_frm.doc.item]]
+				query: "erpnext.controllers.queries.item_query"
 			};
 		});
 
diff --git a/erpnext/manufacturing/doctype/bom/bom.py b/erpnext/manufacturing/doctype/bom/bom.py
index f6cdb2e57cf..b3e602bdfab 100644
--- a/erpnext/manufacturing/doctype/bom/bom.py
+++ b/erpnext/manufacturing/doctype/bom/bom.py
@@ -114,10 +114,6 @@ class BOM(WebsiteGenerator):
 				child = self.append('operations', d)
 				child.hour_rate = flt(d.hour_rate / self.conversion_rate, 2)
 
-	def validate_rm_item(self, item):
-		if (item[0]['name'] in [it.item_code for it in self.items]) and item[0]['name'] == self.item:
-			frappe.throw(_("BOM #{0}: Raw material cannot be same as main Item").format(self.name))
-
 	def set_bom_material_details(self):
 		for item in self.get("items"):
 			self.validate_bom_currecny(item)
@@ -147,7 +143,6 @@ class BOM(WebsiteGenerator):
 			args = json.loads(args)
 
 		item = self.get_item_det(args['item_code'])
-		self.validate_rm_item(item)
 
 		args['bom_no'] = args['bom_no'] or item and cstr(item[0]['default_bom']) or ''
 		args['transfer_for_manufacture'] = (cstr(args.get('include_item_in_manufacturing', '')) or
diff --git a/erpnext/manufacturing/doctype/work_order/work_order.py b/erpnext/manufacturing/doctype/work_order/work_order.py
index a124b1fcc57..84bfab2f1d9 100644
--- a/erpnext/manufacturing/doctype/work_order/work_order.py
+++ b/erpnext/manufacturing/doctype/work_order/work_order.py
@@ -552,24 +552,33 @@ class WorkOrder(Document):
 			d.db_set('transferred_qty', flt(transferred_qty), update_modified = False)
 
 	def update_consumed_qty_for_required_items(self):
-		'''update consumed qty from submitted stock entries for that item against
-			the work order'''
+		'''
+			Update consumed qty from submitted stock entries
+			against a work order for each stock item
+		'''
 
-		for d in self.required_items:
-			consumed_qty = frappe.db.sql('''select sum(qty)
-				from `tabStock Entry` entry, `tabStock Entry Detail` detail
-				where
+		for item in self.required_items:
+			consumed_qty = frappe.db.sql('''
+				SELECT
+					SUM(qty)
+				FROM
+					`tabStock Entry` entry,
+					`tabStock Entry Detail` detail
+				WHERE
 					entry.work_order = %(name)s
-					and (entry.purpose = "Material Consumption for Manufacture"
-					or entry.purpose = "Manufacture")
-					and entry.docstatus = 1
-					and detail.parent = entry.name
-					and (detail.item_code = %(item)s or detail.original_item = %(item)s)''', {
-						'name': self.name,
-						'item': d.item_code
-					})[0][0]
+						AND (entry.purpose = "Material Consumption for Manufacture"
+							OR entry.purpose = "Manufacture")
+						AND entry.docstatus = 1
+						AND detail.parent = entry.name
+						AND detail.s_warehouse IS NOT null
+						AND (detail.item_code = %(item)s
+							OR detail.original_item = %(item)s)
+				''', {
+					'name': self.name,
+					'item': item.item_code
+				})[0][0]
 
-			d.db_set('consumed_qty', flt(consumed_qty), update_modified = False)
+			item.db_set('consumed_qty', flt(consumed_qty), update_modified=False)
 
 	def make_bom(self):
 		data = frappe.db.sql(""" select sed.item_code, sed.qty, sed.s_warehouse
diff --git a/erpnext/stock/doctype/stock_entry/stock_entry.py b/erpnext/stock/doctype/stock_entry/stock_entry.py
index 7ac3242b027..be4c78b1ebd 100644
--- a/erpnext/stock/doctype/stock_entry/stock_entry.py
+++ b/erpnext/stock/doctype/stock_entry/stock_entry.py
@@ -238,7 +238,7 @@ class StockEntry(StockController):
 		if self.purpose == "Manufacture" and self.work_order:
 			production_item = frappe.get_value('Work Order', self.work_order, 'production_item')
 			for item in self.items:
-				if item.item_code == production_item and item.qty != self.fg_completed_qty:
+				if item.item_code == production_item and item.t_warehouse and item.qty != self.fg_completed_qty:
 					frappe.throw(_("Finished product quantity <b>{0}</b> and For Quantity <b>{1}</b> cannot be different")
 						.format(item.qty, self.fg_completed_qty))