diff --git a/erpnext/assets/report/fixed_asset_register/fixed_asset_register.json b/erpnext/assets/report/fixed_asset_register/fixed_asset_register.json
index ae2aa54..b40243c 100644
--- a/erpnext/assets/report/fixed_asset_register/fixed_asset_register.json
+++ b/erpnext/assets/report/fixed_asset_register/fixed_asset_register.json
@@ -1,13 +1,13 @@
 {
  "add_total_row": 0,
  "creation": "2019-09-23 16:35:02.836134",
- "disable_prepared_report": 0,
+ "disable_prepared_report": 1,
  "disabled": 0,
  "docstatus": 0,
  "doctype": "Report",
  "idx": 0,
  "is_standard": "Yes",
- "modified": "2019-09-23 16:35:02.836134",
+ "modified": "2019-10-22 13:00:31.539726",
  "modified_by": "Administrator",
  "module": "Assets",
  "name": "Fixed Asset Register",
diff --git a/erpnext/assets/report/fixed_asset_register/fixed_asset_register.py b/erpnext/assets/report/fixed_asset_register/fixed_asset_register.py
index 2c9e48a..f395499 100644
--- a/erpnext/assets/report/fixed_asset_register/fixed_asset_register.py
+++ b/erpnext/assets/report/fixed_asset_register/fixed_asset_register.py
@@ -4,6 +4,7 @@
 from __future__ import unicode_literals
 import frappe
 from frappe import _
+from frappe.utils import cstr
 
 def execute(filters=None):
 	filters = frappe._dict(filters or {})
@@ -149,12 +150,12 @@
 		FROM `tabAsset Finance Book`
 		WHERE
 			parentfield='finance_books'
-			AND finance_book=%s''', (finance_book)))
+			AND ifnull(finance_book, '')=%s''', cstr(finance_book)))
 
 def get_purchase_receipt_supplier_map():
 	return frappe._dict(frappe.db.sql(''' Select
 		pr.name, pr.supplier
-		FROM `tabPurchase Receipt` pr, `tabPurchase Receipt Item` pri 
+		FROM `tabPurchase Receipt` pr, `tabPurchase Receipt Item` pri
 		WHERE
 			pri.parent = pr.name
 			AND pri.is_fixed_asset=1
@@ -164,7 +165,7 @@
 def get_purchase_invoice_supplier_map():
 	return frappe._dict(frappe.db.sql(''' Select
 		pi.name, pi.supplier
-		FROM `tabPurchase Invoice` pi, `tabPurchase Invoice Item` pii 
+		FROM `tabPurchase Invoice` pi, `tabPurchase Invoice Item` pii
 		WHERE
 			pii.parent = pi.name
 			AND pii.is_fixed_asset=1
diff --git a/erpnext/selling/doctype/sales_order/sales_order.json b/erpnext/selling/doctype/sales_order/sales_order.json
index 78e7b4a..ccc48e1 100644
--- a/erpnext/selling/doctype/sales_order/sales_order.json
+++ b/erpnext/selling/doctype/sales_order/sales_order.json
@@ -682,10 +682,10 @@
    "label": "Additional Discount and Coupon Code"
   },
   {
-    "fieldname": "coupon_code",
-    "fieldtype": "Link",
-    "label": "Coupon Code",
-    "options": "Coupon Code"
+   "fieldname": "coupon_code",
+   "fieldtype": "Link",
+   "label": "Coupon Code",
+   "options": "Coupon Code"
   },
   {
    "default": "Grand Total",
@@ -1185,6 +1185,7 @@
    "default": "0",
    "fieldname": "skip_delivery_note",
    "fieldtype": "Check",
+   "hidden": 1,
    "label": "Skip Delivery Note",
    "print_hide": 1
   }
@@ -1192,7 +1193,7 @@
  "icon": "fa fa-file-text",
  "idx": 105,
  "is_submittable": 1,
- "modified": "2019-10-14 08:46:07.540565",
+ "modified": "2019-10-22 14:26:42.767189",
  "modified_by": "Administrator",
  "module": "Selling",
  "name": "Sales Order",
@@ -1269,4 +1270,4 @@
  "title_field": "title",
  "track_changes": 1,
  "track_seen": 1
-}
+}
\ No newline at end of file