add the item defaults in the childtable for multicompany
diff --git a/erpnext/patches.txt b/erpnext/patches.txt
index f1d3677..97c6dd6 100644
--- a/erpnext/patches.txt
+++ b/erpnext/patches.txt
@@ -541,3 +541,4 @@
 erpnext.patches.v11_0.make_asset_finance_book_against_old_entries
 erpnext.patches.v11_0.check_buying_selling_in_currency_exchange
 erpnext.patches.v11_0.refactor_erpnext_shopify
+erpnext.patches.v11_0.move_item_defaults_to_child_table_for_multicompany
diff --git a/erpnext/patches/v11_0/move_item_defaults_to_child_table_for_multicompany.py b/erpnext/patches/v11_0/move_item_defaults_to_child_table_for_multicompany.py
new file mode 100644
index 0000000..a78d2d6
--- /dev/null
+++ b/erpnext/patches/v11_0/move_item_defaults_to_child_table_for_multicompany.py
@@ -0,0 +1,64 @@
+# Copyright (c) 2018, Frappe and Contributors
+# License: GNU General Public License v3. See license.txt
+
+from __future__ import unicode_literals
+import frappe
+
+def execute():
+	'''
+
+	Fields to move from the item to item defaults child table
+	[ default_warehouse, buying_cost_center, expense_account, selling_cost_center, income_account ]
+
+	'''
+
+	frappe.reload_doc('stock', 'doctype', 'item_default')
+	frappe.reload_doc('stock', 'doctype', 'item')
+
+	item_details = frappe.get_all("Item", fields=["name", "default_warehouse", "buying_cost_center",
+								"expense_account", "selling_cost_center", "income_account"], limit=100)
+
+	for item in item_details:
+		item_defaults = []
+
+		def insert_into_item_defaults(doc_field_name, doc_field_value, company):
+			for d in item_defaults:
+				if d.get("company") == company:
+					d[doc_field_name] = doc_field_value
+					return
+			item_defaults.append({
+				"company": company,
+				doc_field_name: doc_field_value
+			})
+
+		if item.default_warehouse:
+			default_warehouse_company = frappe.get_value("Warehouse", item.default_warehouse, "company", cache=True)
+			insert_into_item_defaults("default_warehouse", item.default_warehouse, default_warehouse_company)
+
+		if item.buying_cost_center:
+			buying_cost_center_company = get_cost_center_company(item.buying_cost_center)
+			insert_into_item_defaults("buying_cost_center", item.buying_cost_center, buying_cost_center_company)
+
+		if item.selling_cost_center:
+			selling_cost_center_company = get_cost_center_company(item.buying_cost_center)
+			insert_into_item_defaults("selling_cost_center", item.selling_cost_center, selling_cost_center_company)
+
+		if item.expense_account:
+			expense_account_company = get_account_company(item.expense_account)
+			insert_into_item_defaults("expense_account", item.expense_account, expense_account_company)
+
+		if item.income_account:
+			income_account_company = get_account_company(item.income_account)
+			insert_into_item_defaults("income_account", item.income_account, income_account_company)
+
+		doc = frappe.get_doc("Item", item.name)
+		doc.extend("item_defaults", item_defaults)
+		
+		for child_doc in doc.item_defaults:
+			child_doc.db_update()
+
+def get_account_company(account_name):
+	return frappe.get_value("Account", account_name, "company", cache=True)
+
+def get_cost_center_company(cost_center):
+	return frappe.get_value("Cost Center", cost_center, "company", cache=True)
diff --git a/erpnext/stock/doctype/item/item.json b/erpnext/stock/doctype/item/item.json
index 5013e23..ce1bdc3 100644
--- a/erpnext/stock/doctype/item/item.json
+++ b/erpnext/stock/doctype/item/item.json
@@ -1614,6 +1614,69 @@
    "unique": 0
   }, 
   {
+    "allow_bulk_edit": 0, 
+    "allow_on_submit": 0, 
+    "bold": 0, 
+    "collapsible": 1, 
+    "columns": 0, 
+    "fieldname": "defaults", 
+    "fieldtype": "Section Break", 
+    "hidden": 0, 
+    "ignore_user_permissions": 0, 
+    "ignore_xss_filter": 0, 
+    "in_filter": 0, 
+    "in_global_search": 0, 
+    "in_list_view": 0, 
+    "in_standard_filter": 0, 
+    "label": "Defaults", 
+    "length": 0, 
+    "no_copy": 0, 
+    "permlevel": 0, 
+    "precision": "", 
+    "print_hide": 0, 
+    "print_hide_if_no_value": 0, 
+    "read_only": 0, 
+    "remember_last_selected_value": 0, 
+    "report_hide": 0, 
+    "reqd": 0, 
+    "search_index": 0, 
+    "set_only_once": 0, 
+    "translatable": 0, 
+    "unique": 0
+   }, 
+   {
+    "allow_bulk_edit": 0, 
+    "allow_on_submit": 0, 
+    "bold": 0, 
+    "collapsible": 0, 
+    "columns": 0, 
+    "fieldname": "item_defaults", 
+    "fieldtype": "Table", 
+    "hidden": 0, 
+    "ignore_user_permissions": 0, 
+    "ignore_xss_filter": 0, 
+    "in_filter": 0, 
+    "in_global_search": 0, 
+    "in_list_view": 0, 
+    "in_standard_filter": 0, 
+    "label": "Item Defaults", 
+    "length": 0, 
+    "no_copy": 0, 
+    "options": "Item Default", 
+    "permlevel": 0, 
+    "precision": "", 
+    "print_hide": 0, 
+    "print_hide_if_no_value": 0, 
+    "read_only": 0, 
+    "remember_last_selected_value": 0, 
+    "report_hide": 0, 
+    "reqd": 0, 
+    "search_index": 0, 
+    "set_only_once": 0, 
+    "translatable": 0, 
+    "unique": 0
+   }, 
+   {
    "allow_bulk_edit": 0, 
    "allow_on_submit": 0, 
    "bold": 0, 
diff --git a/erpnext/stock/doctype/item/item.py b/erpnext/stock/doctype/item/item.py
index 945bde3..0289749 100644
--- a/erpnext/stock/doctype/item/item.py
+++ b/erpnext/stock/doctype/item/item.py
@@ -81,7 +81,8 @@
 	def after_insert(self):
 		'''set opening stock and item price'''
 		if self.standard_rate:
-			self.add_price()
+			for default in self.item_defaults:
+				self.add_price(default.default_price_list)
 
 		if self.opening_stock:
 			self.set_opening_stock()
@@ -166,15 +167,16 @@
 		from erpnext.stock.doctype.stock_entry.stock_entry_utils import make_stock_entry
 
 		# default warehouse, or Stores
-		default_warehouse = (self.default_warehouse
-        		or frappe.db.get_single_value('Stock Settings', 'default_warehouse')
-                or frappe.db.get_value('Warehouse', {'warehouse_name': _('Stores')}))
+		for default in self.item_defaults:
+			default_warehouse = (default.default_warehouse
+					or frappe.db.get_single_value('Stock Settings', 'default_warehouse')
+					or frappe.db.get_value('Warehouse', {'warehouse_name': _('Stores')}))
 
-		if default_warehouse:
-			stock_entry = make_stock_entry(item_code=self.name, target=default_warehouse,
-                                  qty=self.opening_stock, rate=self.valuation_rate)
+			if default_warehouse:
+				stock_entry = make_stock_entry(item_code=self.name, target=default_warehouse, qty=self.opening_stock,
+												rate=self.valuation_rate, company=default.company)
 
-			stock_entry.add_comment("Comment", _("Opening Stock"))
+				stock_entry.add_comment("Comment", _("Opening Stock"))
 
 	def make_route(self):
 		if not self.route:
diff --git a/erpnext/stock/doctype/item_default/__init__.py b/erpnext/stock/doctype/item_default/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/erpnext/stock/doctype/item_default/__init__.py
diff --git a/erpnext/stock/doctype/item_default/item_default.json b/erpnext/stock/doctype/item_default/item_default.json
new file mode 100644
index 0000000..72d7880
--- /dev/null
+++ b/erpnext/stock/doctype/item_default/item_default.json
@@ -0,0 +1,449 @@
+{
+ "allow_copy": 0, 
+ "allow_guest_to_view": 0, 
+ "allow_import": 0, 
+ "allow_rename": 0, 
+ "beta": 0, 
+ "creation": "2018-05-03 02:29:24.444341", 
+ "custom": 0, 
+ "docstatus": 0, 
+ "doctype": "DocType", 
+ "document_type": "", 
+ "editable_grid": 1, 
+ "engine": "InnoDB", 
+ "fields": [
+  {
+   "allow_bulk_edit": 0, 
+   "allow_on_submit": 0, 
+   "bold": 0, 
+   "collapsible": 0, 
+   "columns": 0, 
+   "fieldname": "company", 
+   "fieldtype": "Link", 
+   "hidden": 0, 
+   "ignore_user_permissions": 0, 
+   "ignore_xss_filter": 0, 
+   "in_filter": 0, 
+   "in_global_search": 0, 
+   "in_list_view": 1, 
+   "in_standard_filter": 0, 
+   "label": "Company", 
+   "length": 0, 
+   "no_copy": 0, 
+   "options": "Company", 
+   "permlevel": 0, 
+   "precision": "", 
+   "print_hide": 0, 
+   "print_hide_if_no_value": 0, 
+   "read_only": 0, 
+   "remember_last_selected_value": 0, 
+   "report_hide": 0, 
+   "reqd": 0, 
+   "search_index": 0, 
+   "set_only_once": 0, 
+   "translatable": 0, 
+   "unique": 0
+  }, 
+  {
+   "allow_bulk_edit": 0, 
+   "allow_on_submit": 0, 
+   "bold": 0, 
+   "collapsible": 0, 
+   "columns": 0, 
+   "fieldname": "default_warehouse", 
+   "fieldtype": "Link", 
+   "hidden": 0, 
+   "ignore_user_permissions": 0, 
+   "ignore_xss_filter": 0, 
+   "in_filter": 0, 
+   "in_global_search": 0, 
+   "in_list_view": 1, 
+   "in_standard_filter": 0, 
+   "label": "Default Warehouse", 
+   "length": 0, 
+   "no_copy": 0, 
+   "options": "Warehouse", 
+   "permlevel": 0, 
+   "precision": "", 
+   "print_hide": 0, 
+   "print_hide_if_no_value": 0, 
+   "read_only": 0, 
+   "remember_last_selected_value": 0, 
+   "report_hide": 0, 
+   "reqd": 0, 
+   "search_index": 0, 
+   "set_only_once": 0, 
+   "translatable": 0, 
+   "unique": 0
+  }, 
+  {
+   "allow_bulk_edit": 0, 
+   "allow_on_submit": 0, 
+   "bold": 0, 
+   "collapsible": 0, 
+   "columns": 0, 
+   "fieldname": "column_break_3", 
+   "fieldtype": "Column Break", 
+   "hidden": 0, 
+   "ignore_user_permissions": 0, 
+   "ignore_xss_filter": 0, 
+   "in_filter": 0, 
+   "in_global_search": 0, 
+   "in_list_view": 0, 
+   "in_standard_filter": 0, 
+   "length": 0, 
+   "no_copy": 0, 
+   "permlevel": 0, 
+   "precision": "", 
+   "print_hide": 0, 
+   "print_hide_if_no_value": 0, 
+   "read_only": 0, 
+   "remember_last_selected_value": 0, 
+   "report_hide": 0, 
+   "reqd": 0, 
+   "search_index": 0, 
+   "set_only_once": 0, 
+   "translatable": 0, 
+   "unique": 0
+  }, 
+  {
+   "allow_bulk_edit": 0, 
+   "allow_on_submit": 0, 
+   "bold": 0, 
+   "collapsible": 0, 
+   "columns": 0, 
+   "fieldname": "default_price_list", 
+   "fieldtype": "Link", 
+   "hidden": 0, 
+   "ignore_user_permissions": 0, 
+   "ignore_xss_filter": 0, 
+   "in_filter": 0, 
+   "in_global_search": 0, 
+   "in_list_view": 1, 
+   "in_standard_filter": 0, 
+   "label": "Default Price List", 
+   "length": 0, 
+   "no_copy": 0, 
+   "options": "Price List", 
+   "permlevel": 0, 
+   "precision": "", 
+   "print_hide": 0, 
+   "print_hide_if_no_value": 0, 
+   "read_only": 0, 
+   "remember_last_selected_value": 0, 
+   "report_hide": 0, 
+   "reqd": 0, 
+   "search_index": 0, 
+   "set_only_once": 0, 
+   "translatable": 0, 
+   "unique": 0
+  }, 
+  {
+   "allow_bulk_edit": 0, 
+   "allow_on_submit": 0, 
+   "bold": 0, 
+   "collapsible": 0, 
+   "columns": 0, 
+   "fieldname": "purchase_defaults", 
+   "fieldtype": "Section Break", 
+   "hidden": 0, 
+   "ignore_user_permissions": 0, 
+   "ignore_xss_filter": 0, 
+   "in_filter": 0, 
+   "in_global_search": 0, 
+   "in_list_view": 0, 
+   "in_standard_filter": 0, 
+   "label": "Purchase Defaults", 
+   "length": 0, 
+   "no_copy": 0, 
+   "permlevel": 0, 
+   "precision": "", 
+   "print_hide": 0, 
+   "print_hide_if_no_value": 0, 
+   "read_only": 0, 
+   "remember_last_selected_value": 0, 
+   "report_hide": 0, 
+   "reqd": 0, 
+   "search_index": 0, 
+   "set_only_once": 0, 
+   "translatable": 0, 
+   "unique": 0
+  }, 
+  {
+   "allow_bulk_edit": 0, 
+   "allow_on_submit": 0, 
+   "bold": 0, 
+   "collapsible": 0, 
+   "columns": 0, 
+   "fieldname": "buying_cost_center", 
+   "fieldtype": "Link", 
+   "hidden": 0, 
+   "ignore_user_permissions": 0, 
+   "ignore_xss_filter": 0, 
+   "in_filter": 0, 
+   "in_global_search": 0, 
+   "in_list_view": 0, 
+   "in_standard_filter": 0, 
+   "label": "Default Buying Cost Center", 
+   "length": 0, 
+   "no_copy": 0, 
+   "options": "Cost Center", 
+   "permlevel": 0, 
+   "precision": "", 
+   "print_hide": 0, 
+   "print_hide_if_no_value": 0, 
+   "read_only": 0, 
+   "remember_last_selected_value": 0, 
+   "report_hide": 0, 
+   "reqd": 0, 
+   "search_index": 0, 
+   "set_only_once": 0, 
+   "translatable": 0, 
+   "unique": 0
+  }, 
+  {
+   "allow_bulk_edit": 0, 
+   "allow_on_submit": 0, 
+   "bold": 0, 
+   "collapsible": 0, 
+   "columns": 0, 
+   "fieldname": "default_supplier", 
+   "fieldtype": "Link", 
+   "hidden": 0, 
+   "ignore_user_permissions": 0, 
+   "ignore_xss_filter": 0, 
+   "in_filter": 0, 
+   "in_global_search": 0, 
+   "in_list_view": 0, 
+   "in_standard_filter": 0, 
+   "label": "Default Supplier", 
+   "length": 0, 
+   "no_copy": 0, 
+   "options": "Supplier", 
+   "permlevel": 0, 
+   "precision": "", 
+   "print_hide": 0, 
+   "print_hide_if_no_value": 0, 
+   "read_only": 0, 
+   "remember_last_selected_value": 0, 
+   "report_hide": 0, 
+   "reqd": 0, 
+   "search_index": 0, 
+   "set_only_once": 0, 
+   "translatable": 0, 
+   "unique": 0
+  }, 
+  {
+   "allow_bulk_edit": 0, 
+   "allow_on_submit": 0, 
+   "bold": 0, 
+   "collapsible": 0, 
+   "columns": 0, 
+   "fieldname": "column_break_8", 
+   "fieldtype": "Column Break", 
+   "hidden": 0, 
+   "ignore_user_permissions": 0, 
+   "ignore_xss_filter": 0, 
+   "in_filter": 0, 
+   "in_global_search": 0, 
+   "in_list_view": 0, 
+   "in_standard_filter": 0, 
+   "length": 0, 
+   "no_copy": 0, 
+   "permlevel": 0, 
+   "precision": "", 
+   "print_hide": 0, 
+   "print_hide_if_no_value": 0, 
+   "read_only": 0, 
+   "remember_last_selected_value": 0, 
+   "report_hide": 0, 
+   "reqd": 0, 
+   "search_index": 0, 
+   "set_only_once": 0, 
+   "translatable": 0, 
+   "unique": 0
+  }, 
+  {
+   "allow_bulk_edit": 0, 
+   "allow_on_submit": 0, 
+   "bold": 0, 
+   "collapsible": 0, 
+   "columns": 0, 
+   "fieldname": "expense_account", 
+   "fieldtype": "Link", 
+   "hidden": 0, 
+   "ignore_user_permissions": 0, 
+   "ignore_xss_filter": 0, 
+   "in_filter": 0, 
+   "in_global_search": 0, 
+   "in_list_view": 0, 
+   "in_standard_filter": 0, 
+   "label": "Default Expense Account", 
+   "length": 0, 
+   "no_copy": 0, 
+   "options": "Account", 
+   "permlevel": 0, 
+   "precision": "", 
+   "print_hide": 0, 
+   "print_hide_if_no_value": 0, 
+   "read_only": 0, 
+   "remember_last_selected_value": 0, 
+   "report_hide": 0, 
+   "reqd": 0, 
+   "search_index": 0, 
+   "set_only_once": 0, 
+   "translatable": 0, 
+   "unique": 0
+  }, 
+  {
+   "allow_bulk_edit": 0, 
+   "allow_on_submit": 0, 
+   "bold": 0, 
+   "collapsible": 0, 
+   "columns": 0, 
+   "fieldname": "selling_defaults", 
+   "fieldtype": "Section Break", 
+   "hidden": 0, 
+   "ignore_user_permissions": 0, 
+   "ignore_xss_filter": 0, 
+   "in_filter": 0, 
+   "in_global_search": 0, 
+   "in_list_view": 0, 
+   "in_standard_filter": 0, 
+   "label": "Sales Defaults", 
+   "length": 0, 
+   "no_copy": 0, 
+   "permlevel": 0, 
+   "precision": "", 
+   "print_hide": 0, 
+   "print_hide_if_no_value": 0, 
+   "read_only": 0, 
+   "remember_last_selected_value": 0, 
+   "report_hide": 0, 
+   "reqd": 0, 
+   "search_index": 0, 
+   "set_only_once": 0, 
+   "translatable": 0, 
+   "unique": 0
+  }, 
+  {
+   "allow_bulk_edit": 0, 
+   "allow_on_submit": 0, 
+   "bold": 0, 
+   "collapsible": 0, 
+   "columns": 0, 
+   "fieldname": "selling_cost_center", 
+   "fieldtype": "Link", 
+   "hidden": 0, 
+   "ignore_user_permissions": 0, 
+   "ignore_xss_filter": 0, 
+   "in_filter": 0, 
+   "in_global_search": 0, 
+   "in_list_view": 0, 
+   "in_standard_filter": 0, 
+   "label": "Default Selling Cost Center", 
+   "length": 0, 
+   "no_copy": 0, 
+   "options": "Cost Center", 
+   "permlevel": 0, 
+   "precision": "", 
+   "print_hide": 0, 
+   "print_hide_if_no_value": 0, 
+   "read_only": 0, 
+   "remember_last_selected_value": 0, 
+   "report_hide": 0, 
+   "reqd": 0, 
+   "search_index": 0, 
+   "set_only_once": 0, 
+   "translatable": 0, 
+   "unique": 0
+  }, 
+  {
+   "allow_bulk_edit": 0, 
+   "allow_on_submit": 0, 
+   "bold": 0, 
+   "collapsible": 0, 
+   "columns": 0, 
+   "fieldname": "column_break_12", 
+   "fieldtype": "Column Break", 
+   "hidden": 0, 
+   "ignore_user_permissions": 0, 
+   "ignore_xss_filter": 0, 
+   "in_filter": 0, 
+   "in_global_search": 0, 
+   "in_list_view": 0, 
+   "in_standard_filter": 0, 
+   "length": 0, 
+   "no_copy": 0, 
+   "permlevel": 0, 
+   "precision": "", 
+   "print_hide": 0, 
+   "print_hide_if_no_value": 0, 
+   "read_only": 0, 
+   "remember_last_selected_value": 0, 
+   "report_hide": 0, 
+   "reqd": 0, 
+   "search_index": 0, 
+   "set_only_once": 0, 
+   "translatable": 0, 
+   "unique": 0
+  }, 
+  {
+   "allow_bulk_edit": 0, 
+   "allow_on_submit": 0, 
+   "bold": 0, 
+   "collapsible": 0, 
+   "columns": 0, 
+   "fieldname": "income_account", 
+   "fieldtype": "Link", 
+   "hidden": 0, 
+   "ignore_user_permissions": 0, 
+   "ignore_xss_filter": 0, 
+   "in_filter": 0, 
+   "in_global_search": 0, 
+   "in_list_view": 0, 
+   "in_standard_filter": 0, 
+   "label": "Default Income Account", 
+   "length": 0, 
+   "no_copy": 0, 
+   "options": "Account", 
+   "permlevel": 0, 
+   "precision": "", 
+   "print_hide": 0, 
+   "print_hide_if_no_value": 0, 
+   "read_only": 0, 
+   "remember_last_selected_value": 0, 
+   "report_hide": 0, 
+   "reqd": 0, 
+   "search_index": 0, 
+   "set_only_once": 0, 
+   "translatable": 0, 
+   "unique": 0
+  }
+ ], 
+ "has_web_view": 0, 
+ "hide_heading": 0, 
+ "hide_toolbar": 0, 
+ "idx": 0, 
+ "image_view": 0, 
+ "in_create": 0, 
+ "is_submittable": 0, 
+ "issingle": 0, 
+ "istable": 1, 
+ "max_attachments": 0, 
+ "modified": "2018-05-03 02:44:24.097373", 
+ "modified_by": "Administrator", 
+ "module": "Stock", 
+ "name": "Item Default", 
+ "name_case": "", 
+ "owner": "Administrator", 
+ "permissions": [], 
+ "quick_entry": 1, 
+ "read_only": 0, 
+ "read_only_onload": 0, 
+ "show_name_in_global_search": 0, 
+ "sort_field": "modified", 
+ "sort_order": "DESC", 
+ "track_changes": 1, 
+ "track_seen": 0
+}
\ No newline at end of file
diff --git a/erpnext/stock/doctype/item_default/item_default.py b/erpnext/stock/doctype/item_default/item_default.py
new file mode 100644
index 0000000..85e84db
--- /dev/null
+++ b/erpnext/stock/doctype/item_default/item_default.py
@@ -0,0 +1,10 @@
+# -*- coding: utf-8 -*-
+# Copyright (c) 2018, Frappe Technologies Pvt. Ltd. and contributors
+# For license information, please see license.txt
+
+from __future__ import unicode_literals
+import frappe
+from frappe.model.document import Document
+
+class ItemDefault(Document):
+	pass
diff --git a/erpnext/stock/doctype/stock_entry/stock_entry_utils.py b/erpnext/stock/doctype/stock_entry/stock_entry_utils.py
index 8bf2610..8647d0f 100644
--- a/erpnext/stock/doctype/stock_entry/stock_entry_utils.py
+++ b/erpnext/stock/doctype/stock_entry/stock_entry_utils.py
@@ -12,6 +12,7 @@
 
 	:item_code: Item to be moved
 	:qty: Qty to be moved
+	:company: Company Name (optional)
 	:from_warehouse: Optional
 	:to_warehouse: Optional
 	:rate: Optional