diff --git a/erpnext/patches.txt b/erpnext/patches.txt
index d018968..c837034 100644
--- a/erpnext/patches.txt
+++ b/erpnext/patches.txt
@@ -428,4 +428,5 @@
 erpnext.patches.v8_5.remove_quotations_route_in_sidebar
 erpnext.patches.v8_5.update_existing_data_in_project_type
 erpnext.patches.v8_5.update_customer_group_in_POS_profile
-erpnext.patches.v8_6.update_timesheet_company_from_PO
\ No newline at end of file
+erpnext.patches.v8_6.update_timesheet_company_from_PO
+erpnext.patches.v8_6.set_write_permission_for_quotation_for_sales_manager
\ No newline at end of file
diff --git a/erpnext/patches/v8_6/set_write_permission_for_quotation_for_sales_manager.py b/erpnext/patches/v8_6/set_write_permission_for_quotation_for_sales_manager.py
new file mode 100644
index 0000000..c2320ec
--- /dev/null
+++ b/erpnext/patches/v8_6/set_write_permission_for_quotation_for_sales_manager.py
@@ -0,0 +1,11 @@
+# Copyright (c) 2017, Frappe and Contributors
+# License: GNU General Public License v3. See license.txt
+
+from __future__ import unicode_literals
+import frappe
+
+def execute():
+	# Set write permission to permlevel 1 for sales manager role in Quotation doctype
+	frappe.db.sql(""" update `tabCustom DocPerm` set `tabCustom DocPerm`.write = 1
+		where `tabCustom DocPerm`.parent = 'Quotation' and `tabCustom DocPerm`.role = 'Sales Manager'
+		and `tabCustom DocPerm`.permlevel = 1 """)
diff --git a/erpnext/selling/doctype/quotation/quotation.json b/erpnext/selling/doctype/quotation/quotation.json
index 2109023..3130413 100644
--- a/erpnext/selling/doctype/quotation/quotation.json
+++ b/erpnext/selling/doctype/quotation/quotation.json
@@ -2572,7 +2572,7 @@
  "istable": 0, 
  "max_attachments": 1, 
  "menu_index": 0, 
- "modified": "2017-07-19 13:49:33.388736", 
+ "modified": "2017-08-02 18:15:38.198698", 
  "modified_by": "Administrator", 
  "module": "Selling", 
  "name": "Quotation", 
@@ -2638,7 +2638,7 @@
    "set_user_permissions": 0, 
    "share": 0, 
    "submit": 0, 
-   "write": 0
+   "write": 1
   }, 
   {
    "amend": 1,