[
 {
  "owner": "Administrator", 
  "docstatus": 0, 
  "creation": "2010-08-08 17:09:34", 
  "modified_by": "Administrator", 
  "modified": "2011-09-15 15:04:42"
 }, 
 {
  "name": "__common__", 
  "parent": "Delivery Note-Installation Note", 
  "doctype": "Table Mapper Detail", 
  "parenttype": "DocType Mapper", 
  "parentfield": "table_mapper_details"
 }, 
 {
  "map": "Yes", 
  "name": "__common__", 
  "parent": "Delivery Note-Installation Note", 
  "doctype": "Field Mapper Detail", 
  "parenttype": "DocType Mapper", 
  "parentfield": "field_mapper_details"
 }, 
 {
  "name": "__common__", 
  "to_doctype": "Installation Note", 
  "module": "Selling", 
  "doctype": "DocType Mapper", 
  "ref_doc_submitted": 1, 
  "from_doctype": "Delivery Note"
 }, 
 {
  "name": "Delivery Note-Installation Note", 
  "doctype": "DocType Mapper"
 }, 
 {
  "match_id": 0, 
  "to_field": "company", 
  "doctype": "Field Mapper Detail", 
  "from_field": "company", 
  "checking_operator": "="
 }, 
 {
  "match_id": 0, 
  "to_field": "customer", 
  "doctype": "Field Mapper Detail", 
  "from_field": "customer", 
  "checking_operator": "="
 }, 
 {
  "to_field": "delivery_note_no", 
  "doctype": "Field Mapper Detail", 
  "match_id": 0, 
  "from_field": "name"
 }, 
 {
  "to_field": "prevdoc_detail_docname", 
  "doctype": "Field Mapper Detail", 
  "match_id": 1, 
  "from_field": "name"
 }, 
 {
  "to_field": "prevdoc_docname", 
  "doctype": "Field Mapper Detail", 
  "match_id": 1, 
  "from_field": "parent"
 }, 
 {
  "to_field": "prevdoc_doctype", 
  "doctype": "Field Mapper Detail", 
  "match_id": 1, 
  "from_field": "parenttype"
 }, 
 {
  "to_field": "qty", 
  "doctype": "Field Mapper Detail", 
  "match_id": 1, 
  "from_field": "eval: flt(obj.qty) - flt(obj.installed_qty)"
 }, 
 {
  "to_field": "prevdoc_date", 
  "doctype": "Field Mapper Detail", 
  "match_id": 2, 
  "from_field": "posting_date"
 }, 
 {
  "to_field": "serial_no", 
  "doctype": "Field Mapper Detail", 
  "match_id": 1, 
  "from_field": "serial_no"
 }, 
 {
  "match_id": 1, 
  "to_field": "installed_item_details", 
  "doctype": "Table Mapper Detail", 
  "from_field": "delivery_note_details", 
  "from_table": "Delivery Note Item", 
  "to_table": "Installation Note Item", 
  "validation_logic": "qty > ifnull(installed_qty,0) and docstatus = 1"
 }, 
 {
  "match_id": 0, 
  "doctype": "Table Mapper Detail", 
  "from_table": "Delivery Note", 
  "to_table": "Installation Note", 
  "validation_logic": "docstatus = 1"
 }, 
 {
  "reference_key": "prevdoc_docname", 
  "match_id": 2, 
  "reference_doctype_key": "prevdoc_doctype", 
  "to_field": "installed_item_details", 
  "doctype": "Table Mapper Detail", 
  "from_table": "Delivery Note", 
  "to_table": "Installation Note Item", 
  "validation_logic": "docstatus = 1"
 }
]