diff --git a/erpnext/controllers/accounts_controller.py b/erpnext/controllers/accounts_controller.py
index 99a9522b6a7..f1e16ce59c4 100644
--- a/erpnext/controllers/accounts_controller.py
+++ b/erpnext/controllers/accounts_controller.py
@@ -1185,45 +1185,28 @@ def add_taxes_from_tax_template(child_item, parent_doc):
 					})
 				tax_row.db_insert()
 
-def set_sales_order_defaults(parent_doctype, parent_doctype_name, child_docname, trans_item):
+def set_order_defaults(parent_doctype, parent_doctype_name, child_doctype, child_docname, trans_item):
 	"""
-	Returns a Sales Order Item child item containing the default values
+	Returns a Sales/Purchase Order Item child item containing the default values
 	"""
 	p_doc = frappe.get_doc(parent_doctype, parent_doctype_name)
-	child_item = frappe.new_doc('Sales Order Item', p_doc, child_docname)
+	child_item = frappe.new_doc(child_doctype, p_doc, child_docname)
 	item = frappe.get_doc("Item", trans_item.get('item_code'))
-	child_item.item_code = item.item_code
-	child_item.item_name = item.item_name
-	child_item.description = item.description
-	child_item.delivery_date = trans_item.get('delivery_date') or p_doc.delivery_date
+	for field in ("item_code", "item_name", "description", "item_group"):
+	    child_item.update({field: item.get(field)})
+	date_fieldname = "delivery_date" if child_doctype == "Sales Order Item" else "schedule_date"
+	child_item.update({date_fieldname: trans_item.get(date_fieldname) or p_doc.get(date_fieldname)})
 	child_item.uom = trans_item.get("uom") or item.stock_uom
 	conversion_factor = flt(get_conversion_factor(item.item_code, child_item.uom).get("conversion_factor"))
 	child_item.conversion_factor = flt(trans_item.get('conversion_factor')) or conversion_factor
-	set_child_tax_template_and_map(item, child_item, p_doc)
-	add_taxes_from_tax_template(child_item, p_doc)
-	child_item.warehouse = get_item_warehouse(item, p_doc, overwrite_warehouse=True)
-	if not child_item.warehouse:
-		frappe.throw(_("Cannot find {} for item {}. Please set the same in Item Master or Stock Settings.")
-			.format(frappe.bold("default warehouse"), frappe.bold(item.item_code)))
-	return child_item
-
-
-def set_purchase_order_defaults(parent_doctype, parent_doctype_name, child_docname, trans_item):
-	"""
-	Returns a Purchase Order Item child item containing the default values
-	"""
-	p_doc = frappe.get_doc(parent_doctype, parent_doctype_name)
-	child_item = frappe.new_doc('Purchase Order Item', p_doc, child_docname)
-	item = frappe.get_doc("Item", trans_item.get('item_code'))
-	child_item.item_code = item.item_code
-	child_item.item_name = item.item_name
-	child_item.description = item.description
-	child_item.schedule_date = trans_item.get('schedule_date') or p_doc.schedule_date
-	child_item.uom = trans_item.get("uom") or item.stock_uom
-	conversion_factor = flt(get_conversion_factor(item.item_code, child_item.uom).get("conversion_factor"))
-	child_item.conversion_factor = flt(trans_item.get('conversion_factor')) or conversion_factor
-	child_item.base_rate = 1 # Initiallize value will update in parent validation
-	child_item.base_amount = 1 # Initiallize value will update in parent validation
+	if child_doctype == "Purchase Order Item":
+		child_item.base_rate = 1 # Initiallize value will update in parent validation
+		child_item.base_amount = 1 # Initiallize value will update in parent validation
+	if child_doctype == "Sales Order Item":
+		child_item.warehouse = get_item_warehouse(item, p_doc, overwrite_warehouse=True)
+		if not child_item.warehouse:
+			frappe.throw(_("Cannot find {} for item {}. Please set the same in Item Master or Stock Settings.")
+				.format(frappe.bold("default warehouse"), frappe.bold(item.item_code)))
 	set_child_tax_template_and_map(item, child_item, p_doc)
 	add_taxes_from_tax_template(child_item, p_doc)
 	return child_item
@@ -1287,8 +1270,8 @@ def update_child_qty_rate(parent_doctype, trans_items, parent_doctype_name, chil
 			)
 
 	def get_new_child_item(item_row):
-		new_child_function = set_sales_order_defaults if parent_doctype == "Sales Order" else set_purchase_order_defaults
-		return new_child_function(parent_doctype, parent_doctype_name, child_docname, item_row)
+		child_doctype = "Sales Order Item" if parent_doctype == "Sales Order" else "Purchase Order Item" 
+		return set_order_defaults(parent_doctype, parent_doctype_name, child_doctype, child_docname, item_row)
 
 	def validate_quantity(child_item, d):
 		if parent_doctype == "Sales Order" and flt(d.get("qty")) < flt(child_item.delivered_qty):