diff --git a/erpnext/manufacturing/doctype/bom/bom.json b/erpnext/manufacturing/doctype/bom/bom.json
index 77fc498..a55c3c5 100644
--- a/erpnext/manufacturing/doctype/bom/bom.json
+++ b/erpnext/manufacturing/doctype/bom/bom.json
@@ -1,5 +1,6 @@
 {
  "allow_copy": 0, 
+ "allow_events_in_timeline": 0, 
  "allow_guest_to_view": 0, 
  "allow_import": 1, 
  "allow_rename": 0, 
@@ -479,6 +480,38 @@
    "bold": 0, 
    "collapsible": 0, 
    "columns": 0, 
+   "fieldname": "allow_same_item_multiple_times", 
+   "fieldtype": "Data", 
+   "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": "Allow Same Item Multiple Times", 
+   "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_in_quick_entry": 0, 
+   "allow_on_submit": 0, 
+   "bold": 0, 
+   "collapsible": 0, 
+   "columns": 0, 
    "depends_on": "with_operations", 
    "fieldname": "transfer_material_against_job_card", 
    "fieldtype": "Check", 
@@ -1943,7 +1976,7 @@
  "issingle": 0, 
  "istable": 0, 
  "max_attachments": 0, 
- "modified": "2018-07-15 11:09:19.425998", 
+ "modified": "2018-10-11 11:52:39.047935", 
  "modified_by": "Administrator", 
  "module": "Manufacturing", 
  "name": "BOM", 
diff --git a/erpnext/manufacturing/doctype/bom/bom.py b/erpnext/manufacturing/doctype/bom/bom.py
index 38e6156..b2c3e75 100644
--- a/erpnext/manufacturing/doctype/bom/bom.py
+++ b/erpnext/manufacturing/doctype/bom/bom.py
@@ -334,14 +334,15 @@
 				frappe.throw(_("Quantity required for Item {0} in row {1}").format(m.item_code, m.idx))
 			check_list.append(m)
 
-		duplicate_items = list(get_duplicates(check_list))
-		if duplicate_items:
-			li = []
-			for i in duplicate_items:
-				li.append("{0} on row {1}".format(i.item_code, i.idx))
-			duplicate_list = '<br>' + '<br>'.join(li)
+		if not self.allow_same_item_multiple_times:
+			duplicate_items = list(get_duplicates(check_list))
+			if duplicate_items:
+				li = []
+				for i in duplicate_items:
+					li.append("{0} on row {1}".format(i.item_code, i.idx))
+				duplicate_list = '<br>' + '<br>'.join(li)
 
-			frappe.throw(_("Same item has been entered multiple times. {0}").format(duplicate_list))
+				frappe.throw(_("Same item has been entered multiple times. {0}").format(duplicate_list))
 
 	def check_recursion(self):
 		""" Check whether recursion occurs in any bom"""