diff --git a/erpnext/accounts/doctype/pricing_rule/utils.py b/erpnext/accounts/doctype/pricing_rule/utils.py
index 5795b8f..bbabac4 100644
--- a/erpnext/accounts/doctype/pricing_rule/utils.py
+++ b/erpnext/accounts/doctype/pricing_rule/utils.py
@@ -382,7 +382,7 @@
 			`tab{child_doc}`.amount
 		FROM `tab{child_doc}`, `tab{parent_doc}`
 		WHERE
-			`tab{child_doc}`.parent = `tab{parent_doc}`.name and {date_field}
+			`tab{child_doc}`.parent = `tab{parent_doc}`.name and `tab{parent_doc}`.{date_field}
 			between %s and %s and `tab{parent_doc}`.docstatus = 1
 			{condition} group by `tab{child_doc}`.name
 	""".format(parent_doc = doctype,
diff --git a/erpnext/config/manufacturing.py b/erpnext/config/manufacturing.py
index c79c5b8..2c18eeb 100644
--- a/erpnext/config/manufacturing.py
+++ b/erpnext/config/manufacturing.py
@@ -94,6 +94,13 @@
 					"name": "BOM Update Tool",
 					"description": _("Replace BOM and update latest price in all BOMs"),
 				},
+				{
+					"type": "page",
+					"label": _("BOM Comparison Tool"),
+					"name": "bom-comparison-tool",
+					"description": _("Compare BOMs for changes in Raw Materials and Operations"),
+					"data_doctype": "BOM"
+				},
 			]
 		},
 		{
diff --git a/erpnext/manufacturing/doctype/bom/bom.json b/erpnext/manufacturing/doctype/bom/bom.json
index 7865a24..a0faeb5 100644
--- a/erpnext/manufacturing/doctype/bom/bom.json
+++ b/erpnext/manufacturing/doctype/bom/bom.json
@@ -1,2068 +1,528 @@
 {
- "allow_copy": 0, 
- "allow_events_in_timeline": 0, 
- "allow_guest_to_view": 0, 
- "allow_import": 1, 
- "allow_rename": 0, 
- "beta": 0, 
- "creation": "2013-01-22 15:11:38", 
- "custom": 0, 
- "docstatus": 0, 
- "doctype": "DocType", 
- "document_type": "Setup", 
- "editable_grid": 0, 
+ "allow_import": 1,
+ "creation": "2013-01-22 15:11:38",
+ "doctype": "DocType",
+ "document_type": "Setup",
+ "field_order": [
+  "item",
+  "item_name",
+  "image",
+  "uom",
+  "quantity",
+  "cb0",
+  "is_active",
+  "is_default",
+  "with_operations",
+  "inspection_required",
+  "allow_alternative_item",
+  "allow_same_item_multiple_times",
+  "set_rate_of_sub_assembly_item_based_on_bom",
+  "quality_inspection_template",
+  "currency_detail",
+  "company",
+  "transfer_material_against",
+  "conversion_rate",
+  "column_break_12",
+  "currency",
+  "rm_cost_as_per",
+  "buying_price_list",
+  "operations_section",
+  "routing",
+  "operations",
+  "materials_section",
+  "items",
+  "scrap_section",
+  "scrap_items",
+  "costing",
+  "operating_cost",
+  "raw_material_cost",
+  "scrap_material_cost",
+  "cb1",
+  "base_operating_cost",
+  "base_raw_material_cost",
+  "base_scrap_material_cost",
+  "total_cost_of_bom",
+  "total_cost",
+  "column_break_26",
+  "base_total_cost",
+  "more_info_section",
+  "project",
+  "amended_from",
+  "col_break23",
+  "section_break_25",
+  "description",
+  "column_break_27",
+  "section_break0",
+  "exploded_items",
+  "website_section",
+  "show_in_website",
+  "route",
+  "website_image",
+  "thumbnail",
+  "sb_web_spec",
+  "web_long_description",
+  "show_items",
+  "show_operations"
+ ],
  "fields": [
   {
-   "allow_bulk_edit": 0, 
-   "allow_in_quick_entry": 0, 
-   "allow_on_submit": 0, 
-   "bold": 0, 
-   "collapsible": 0, 
-   "columns": 0, 
-   "description": "Item to be manufactured or repacked", 
-   "fetch_if_empty": 0, 
-   "fieldname": "item", 
-   "fieldtype": "Link", 
-   "hidden": 0, 
-   "ignore_user_permissions": 0, 
-   "ignore_xss_filter": 0, 
-   "in_filter": 0, 
-   "in_global_search": 0, 
-   "in_list_view": 1, 
-   "in_standard_filter": 1, 
-   "label": "Item", 
-   "length": 0, 
-   "no_copy": 0, 
-   "oldfieldname": "item", 
-   "oldfieldtype": "Link", 
-   "options": "Item", 
-   "permlevel": 0, 
-   "print_hide": 0, 
-   "print_hide_if_no_value": 0, 
-   "read_only": 0, 
-   "remember_last_selected_value": 0, 
-   "report_hide": 0, 
-   "reqd": 1, 
-   "search_index": 1, 
-   "set_only_once": 0, 
-   "translatable": 0, 
-   "unique": 0
-  }, 
+   "description": "Item to be manufactured or repacked",
+   "fieldname": "item",
+   "fieldtype": "Link",
+   "in_list_view": 1,
+   "in_standard_filter": 1,
+   "label": "Item",
+   "oldfieldname": "item",
+   "oldfieldtype": "Link",
+   "options": "Item",
+   "reqd": 1,
+   "search_index": 1
+  },
   {
-   "allow_bulk_edit": 0, 
-   "allow_in_quick_entry": 0, 
-   "allow_on_submit": 0, 
-   "bold": 0, 
-   "collapsible": 0, 
-   "columns": 0, 
-   "depends_on": "", 
-   "fetch_from": "item.item_name", 
-   "fetch_if_empty": 0, 
-   "fieldname": "item_name", 
-   "fieldtype": "Data", 
-   "hidden": 0, 
-   "ignore_user_permissions": 0, 
-   "ignore_xss_filter": 0, 
-   "in_filter": 0, 
-   "in_global_search": 1, 
-   "in_list_view": 0, 
-   "in_standard_filter": 0, 
-   "label": "Item Name", 
-   "length": 0, 
-   "no_copy": 0, 
-   "permlevel": 0, 
-   "precision": "", 
-   "print_hide": 0, 
-   "print_hide_if_no_value": 0, 
-   "read_only": 1, 
-   "remember_last_selected_value": 0, 
-   "report_hide": 0, 
-   "reqd": 0, 
-   "search_index": 0, 
-   "set_only_once": 0, 
-   "translatable": 0, 
-   "unique": 0
-  }, 
+   "fetch_from": "item.item_name",
+   "fieldname": "item_name",
+   "fieldtype": "Data",
+   "in_global_search": 1,
+   "label": "Item Name",
+   "read_only": 1
+  },
   {
-   "allow_bulk_edit": 0, 
-   "allow_in_quick_entry": 0, 
-   "allow_on_submit": 0, 
-   "bold": 0, 
-   "collapsible": 0, 
-   "columns": 0, 
-   "fetch_from": "item.image", 
-   "fetch_if_empty": 0, 
-   "fieldname": "image", 
-   "fieldtype": "Attach Image", 
-   "hidden": 1, 
-   "ignore_user_permissions": 0, 
-   "ignore_xss_filter": 0, 
-   "in_filter": 0, 
-   "in_global_search": 0, 
-   "in_list_view": 0, 
-   "in_standard_filter": 0, 
-   "label": "Image", 
-   "length": 0, 
-   "no_copy": 0, 
-   "options": "image", 
-   "permlevel": 0, 
-   "precision": "", 
-   "print_hide": 1, 
-   "print_hide_if_no_value": 0, 
-   "read_only": 1, 
-   "remember_last_selected_value": 0, 
-   "report_hide": 0, 
-   "reqd": 0, 
-   "search_index": 0, 
-   "set_only_once": 0, 
-   "translatable": 0, 
-   "unique": 0
-  }, 
+   "fetch_from": "item.image",
+   "fieldname": "image",
+   "fieldtype": "Attach Image",
+   "hidden": 1,
+   "label": "Image",
+   "options": "image",
+   "print_hide": 1,
+   "read_only": 1
+  },
   {
-   "allow_bulk_edit": 0, 
-   "allow_in_quick_entry": 0, 
-   "allow_on_submit": 0, 
-   "bold": 0, 
-   "collapsible": 0, 
-   "columns": 0, 
-   "fetch_from": "item.stock_uom", 
-   "fetch_if_empty": 0, 
-   "fieldname": "uom", 
-   "fieldtype": "Link", 
-   "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": "Item UOM", 
-   "length": 0, 
-   "no_copy": 0, 
-   "options": "UOM", 
-   "permlevel": 0, 
-   "print_hide": 0, 
-   "print_hide_if_no_value": 0, 
-   "read_only": 1, 
-   "remember_last_selected_value": 0, 
-   "report_hide": 0, 
-   "reqd": 0, 
-   "search_index": 0, 
-   "set_only_once": 0, 
-   "translatable": 0, 
-   "unique": 0
-  }, 
+   "fetch_from": "item.stock_uom",
+   "fieldname": "uom",
+   "fieldtype": "Link",
+   "label": "Item UOM",
+   "options": "UOM",
+   "read_only": 1
+  },
   {
-   "allow_bulk_edit": 0, 
-   "allow_in_quick_entry": 0, 
-   "allow_on_submit": 0, 
-   "bold": 0, 
-   "collapsible": 0, 
-   "columns": 0, 
-   "default": "1", 
-   "description": "Quantity of item obtained after manufacturing / repacking from given quantities of raw materials", 
-   "fetch_if_empty": 0, 
-   "fieldname": "quantity", 
-   "fieldtype": "Float", 
-   "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": "Quantity", 
-   "length": 0, 
-   "no_copy": 0, 
-   "oldfieldname": "quantity", 
-   "oldfieldtype": "Currency", 
-   "permlevel": 0, 
-   "print_hide": 0, 
-   "print_hide_if_no_value": 0, 
-   "read_only": 0, 
-   "remember_last_selected_value": 0, 
-   "report_hide": 0, 
-   "reqd": 1, 
-   "search_index": 0, 
-   "set_only_once": 0, 
-   "translatable": 0, 
-   "unique": 0
-  }, 
+   "default": "1",
+   "description": "Quantity of item obtained after manufacturing / repacking from given quantities of raw materials",
+   "fieldname": "quantity",
+   "fieldtype": "Float",
+   "label": "Quantity",
+   "oldfieldname": "quantity",
+   "oldfieldtype": "Currency",
+   "reqd": 1
+  },
   {
-   "allow_bulk_edit": 0, 
-   "allow_in_quick_entry": 0, 
-   "allow_on_submit": 0, 
-   "bold": 0, 
-   "collapsible": 0, 
-   "columns": 0, 
-   "fetch_if_empty": 0, 
-   "fieldname": "cb0", 
-   "fieldtype": "Column Break", 
-   "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, 
-   "length": 0, 
-   "no_copy": 0, 
-   "permlevel": 0, 
-   "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
-  }, 
+   "fieldname": "cb0",
+   "fieldtype": "Column Break"
+  },
   {
-   "allow_bulk_edit": 0, 
-   "allow_in_quick_entry": 0, 
-   "allow_on_submit": 1, 
-   "bold": 0, 
-   "collapsible": 0, 
-   "columns": 0, 
-   "default": "1", 
-   "fetch_if_empty": 0, 
-   "fieldname": "is_active", 
-   "fieldtype": "Check", 
-   "hidden": 0, 
-   "ignore_user_permissions": 0, 
-   "ignore_xss_filter": 0, 
-   "in_filter": 0, 
-   "in_global_search": 0, 
-   "in_list_view": 1, 
-   "in_standard_filter": 0, 
-   "label": "Is Active", 
-   "length": 0, 
-   "no_copy": 1, 
-   "oldfieldname": "is_active", 
-   "oldfieldtype": "Select", 
-   "permlevel": 0, 
-   "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_on_submit": 1,
+   "default": "1",
+   "fieldname": "is_active",
+   "fieldtype": "Check",
+   "in_list_view": 1,
+   "label": "Is Active",
+   "no_copy": 1,
+   "oldfieldname": "is_active",
+   "oldfieldtype": "Select"
+  },
   {
-   "allow_bulk_edit": 0, 
-   "allow_in_quick_entry": 0, 
-   "allow_on_submit": 1, 
-   "bold": 0, 
-   "collapsible": 0, 
-   "columns": 0, 
-   "default": "1", 
-   "fetch_if_empty": 0, 
-   "fieldname": "is_default", 
-   "fieldtype": "Check", 
-   "hidden": 0, 
-   "ignore_user_permissions": 0, 
-   "ignore_xss_filter": 0, 
-   "in_filter": 0, 
-   "in_global_search": 0, 
-   "in_list_view": 1, 
-   "in_standard_filter": 0, 
-   "label": "Is Default", 
-   "length": 0, 
-   "no_copy": 1, 
-   "oldfieldname": "is_default", 
-   "oldfieldtype": "Check", 
-   "permlevel": 0, 
-   "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_on_submit": 1,
+   "default": "1",
+   "fieldname": "is_default",
+   "fieldtype": "Check",
+   "in_list_view": 1,
+   "label": "Is Default",
+   "no_copy": 1,
+   "oldfieldname": "is_default",
+   "oldfieldtype": "Check"
+  },
   {
-   "allow_bulk_edit": 0, 
-   "allow_in_quick_entry": 0, 
-   "allow_on_submit": 0, 
-   "bold": 0, 
-   "collapsible": 0, 
-   "columns": 0, 
-   "description": "Manage cost of operations", 
-   "fetch_if_empty": 0, 
-   "fieldname": "with_operations", 
-   "fieldtype": "Check", 
-   "hidden": 0, 
-   "ignore_user_permissions": 1, 
-   "ignore_xss_filter": 0, 
-   "in_filter": 0, 
-   "in_global_search": 0, 
-   "in_list_view": 0, 
-   "in_standard_filter": 0, 
-   "label": "With Operations", 
-   "length": 0, 
-   "no_copy": 0, 
-   "permlevel": 0, 
-   "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
-  }, 
+   "default": "0",
+   "description": "Manage cost of operations",
+   "fieldname": "with_operations",
+   "fieldtype": "Check",
+   "ignore_user_permissions": 1,
+   "label": "With Operations"
+  },
   {
-   "allow_bulk_edit": 0, 
-   "allow_in_quick_entry": 0, 
-   "allow_on_submit": 0, 
-   "bold": 0, 
-   "collapsible": 0, 
-   "columns": 0, 
-   "fetch_if_empty": 0, 
-   "fieldname": "inspection_required", 
-   "fieldtype": "Check", 
-   "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": "Inspection Required", 
-   "length": 0, 
-   "no_copy": 0, 
-   "permlevel": 0, 
-   "precision": "", 
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-   "print_hide_if_no_value": 0, 
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-   "report_hide": 0, 
-   "reqd": 0, 
-   "search_index": 0, 
-   "set_only_once": 0, 
-   "translatable": 0, 
-   "unique": 0
-  }, 
+   "default": "0",
+   "fieldname": "inspection_required",
+   "fieldtype": "Check",
+   "label": "Inspection Required"
+  },
   {
-   "allow_bulk_edit": 0, 
-   "allow_in_quick_entry": 0, 
-   "allow_on_submit": 0, 
-   "bold": 0, 
-   "collapsible": 0, 
-   "columns": 0, 
-   "fetch_if_empty": 0, 
-   "fieldname": "allow_alternative_item", 
-   "fieldtype": "Check", 
-   "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 Alternative Item", 
-   "length": 0, 
-   "no_copy": 0, 
-   "permlevel": 0, 
-   "precision": "", 
-   "print_hide": 0, 
-   "print_hide_if_no_value": 0, 
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-   "reqd": 0, 
-   "search_index": 0, 
-   "set_only_once": 0, 
-   "translatable": 0, 
-   "unique": 0
-  }, 
+   "default": "0",
+   "fieldname": "allow_alternative_item",
+   "fieldtype": "Check",
+   "label": "Allow Alternative Item"
+  },
   {
-   "allow_bulk_edit": 0, 
-   "allow_in_quick_entry": 0, 
-   "allow_on_submit": 0, 
-   "bold": 0, 
-   "collapsible": 0, 
-   "columns": 0, 
-   "fetch_if_empty": 0, 
-   "fieldname": "allow_same_item_multiple_times", 
-   "fieldtype": "Check", 
-   "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
-  }, 
+   "default": "0",
+   "fieldname": "allow_same_item_multiple_times",
+   "fieldtype": "Check",
+   "label": "Allow Same Item Multiple Times"
+  },
   {
-   "allow_bulk_edit": 0, 
-   "allow_in_quick_entry": 0, 
-   "allow_on_submit": 1, 
-   "bold": 0, 
-   "collapsible": 0, 
-   "columns": 0, 
-   "default": "1", 
-   "fetch_if_empty": 0, 
-   "fieldname": "set_rate_of_sub_assembly_item_based_on_bom", 
-   "fieldtype": "Check", 
-   "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": "Set rate of sub-assembly item based on BOM", 
-   "length": 0, 
-   "no_copy": 0, 
-   "permlevel": 0, 
-   "precision": "", 
-   "print_hide": 0, 
-   "print_hide_if_no_value": 0, 
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-   "report_hide": 0, 
-   "reqd": 0, 
-   "search_index": 0, 
-   "set_only_once": 0, 
-   "translatable": 0, 
-   "unique": 0
-  }, 
+   "allow_on_submit": 1,
+   "default": "1",
+   "fieldname": "set_rate_of_sub_assembly_item_based_on_bom",
+   "fieldtype": "Check",
+   "label": "Set rate of sub-assembly item based on BOM"
+  },
   {
-   "allow_bulk_edit": 0, 
-   "allow_in_quick_entry": 0, 
-   "allow_on_submit": 0, 
-   "bold": 0, 
-   "collapsible": 0, 
-   "columns": 0, 
-   "depends_on": "inspection_required", 
-   "fetch_if_empty": 0, 
-   "fieldname": "quality_inspection_template", 
-   "fieldtype": "Link", 
-   "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": "Quality Inspection Template", 
-   "length": 0, 
-   "no_copy": 0, 
-   "options": "Quality Inspection Template", 
-   "permlevel": 0, 
-   "precision": "", 
-   "print_hide": 0, 
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-   "reqd": 0, 
-   "search_index": 0, 
-   "set_only_once": 0, 
-   "translatable": 0, 
-   "unique": 0
-  }, 
+   "depends_on": "inspection_required",
+   "fieldname": "quality_inspection_template",
+   "fieldtype": "Link",
+   "label": "Quality Inspection Template",
+   "options": "Quality Inspection Template"
+  },
   {
-   "allow_bulk_edit": 0, 
-   "allow_in_quick_entry": 0, 
-   "allow_on_submit": 0, 
-   "bold": 0, 
-   "collapsible": 0, 
-   "columns": 0, 
-   "fetch_if_empty": 0, 
-   "fieldname": "currency_detail", 
-   "fieldtype": "Section Break", 
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-   "columns": 0, 
-   "depends_on": "", 
-   "fetch_if_empty": 0, 
-   "fieldname": "show_in_website", 
-   "fieldtype": "Check", 
-   "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": "Show in Website", 
-   "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_on_submit": 1,
+   "default": "0",
+   "fieldname": "show_in_website",
+   "fieldtype": "Check",
+   "label": "Show in Website"
+  },
   {
-   "allow_bulk_edit": 0, 
-   "allow_in_quick_entry": 0, 
-   "allow_on_submit": 1, 
-   "bold": 0, 
-   "collapsible": 0, 
-   "columns": 0, 
-   "fetch_if_empty": 0, 
-   "fieldname": "route", 
-   "fieldtype": "Small Text", 
-   "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": "Route", 
-   "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_on_submit": 1,
+   "fieldname": "route",
+   "fieldtype": "Small Text",
+   "label": "Route"
+  },
   {
-   "allow_bulk_edit": 0, 
-   "allow_in_quick_entry": 0, 
-   "allow_on_submit": 1, 
-   "bold": 0, 
-   "collapsible": 0, 
-   "columns": 0, 
-   "depends_on": "show_in_website", 
-   "description": "Item Image (if not slideshow)", 
-   "fetch_if_empty": 0, 
-   "fieldname": "website_image", 
-   "fieldtype": "Attach Image", 
-   "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": "Image", 
-   "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_on_submit": 1,
+   "depends_on": "show_in_website",
+   "description": "Item Image (if not slideshow)",
+   "fieldname": "website_image",
+   "fieldtype": "Attach Image",
+   "label": "Image"
+  },
   {
-   "allow_bulk_edit": 0, 
-   "allow_in_quick_entry": 0, 
-   "allow_on_submit": 1, 
-   "bold": 0, 
-   "collapsible": 0, 
-   "columns": 0, 
-   "fetch_if_empty": 0, 
-   "fieldname": "thumbnail", 
-   "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": "Thumbnail", 
-   "length": 0, 
-   "no_copy": 0, 
-   "permlevel": 0, 
-   "precision": "", 
-   "print_hide": 0, 
-   "print_hide_if_no_value": 0, 
-   "read_only": 1, 
-   "remember_last_selected_value": 0, 
-   "report_hide": 0, 
-   "reqd": 0, 
-   "search_index": 0, 
-   "set_only_once": 0, 
-   "translatable": 0, 
-   "unique": 0
-  }, 
+   "allow_on_submit": 1,
+   "fieldname": "thumbnail",
+   "fieldtype": "Data",
+   "label": "Thumbnail",
+   "read_only": 1
+  },
   {
-   "allow_bulk_edit": 0, 
-   "allow_in_quick_entry": 0, 
-   "allow_on_submit": 0, 
-   "bold": 0, 
-   "collapsible": 1, 
-   "collapsible_depends_on": "website_items", 
-   "columns": 0, 
-   "depends_on": "show_in_website", 
-   "fetch_if_empty": 0, 
-   "fieldname": "sb_web_spec", 
-   "fieldtype": "Section Break", 
-   "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": "Website Specifications", 
-   "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
-  }, 
+   "collapsible": 1,
+   "collapsible_depends_on": "website_items",
+   "depends_on": "show_in_website",
+   "fieldname": "sb_web_spec",
+   "fieldtype": "Section Break",
+   "label": "Website Specifications"
+  },
   {
-   "allow_bulk_edit": 0, 
-   "allow_in_quick_entry": 0, 
-   "allow_on_submit": 1, 
-   "bold": 0, 
-   "collapsible": 0, 
-   "columns": 0, 
-   "depends_on": "show_in_website", 
-   "fetch_if_empty": 0, 
-   "fieldname": "web_long_description", 
-   "fieldtype": "Text Editor", 
-   "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": "Website Description", 
-   "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_on_submit": 1,
+   "depends_on": "show_in_website",
+   "fieldname": "web_long_description",
+   "fieldtype": "Text Editor",
+   "label": "Website Description"
+  },
   {
-   "allow_bulk_edit": 0, 
-   "allow_in_quick_entry": 0, 
-   "allow_on_submit": 1, 
-   "bold": 0, 
-   "collapsible": 0, 
-   "columns": 0, 
-   "depends_on": "show_in_website", 
-   "fetch_if_empty": 0, 
-   "fieldname": "show_items", 
-   "fieldtype": "Check", 
-   "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": "Show Items", 
-   "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_on_submit": 1,
+   "default": "0",
+   "depends_on": "show_in_website",
+   "fieldname": "show_items",
+   "fieldtype": "Check",
+   "label": "Show Items"
+  },
   {
-   "allow_bulk_edit": 0, 
-   "allow_in_quick_entry": 0, 
-   "allow_on_submit": 1, 
-   "bold": 0, 
-   "collapsible": 0, 
-   "columns": 0, 
-   "depends_on": "eval:(doc.show_in_website && doc.with_operations)", 
-   "fetch_if_empty": 0, 
-   "fieldname": "show_operations", 
-   "fieldtype": "Check", 
-   "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": "Show Operations", 
-   "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_on_submit": 1,
+   "default": "0",
+   "depends_on": "eval:(doc.show_in_website && doc.with_operations)",
+   "fieldname": "show_operations",
+   "fieldtype": "Check",
+   "label": "Show Operations"
   }
- ], 
- "has_web_view": 0, 
- "hide_heading": 0, 
- "hide_toolbar": 0, 
- "icon": "fa fa-sitemap", 
- "idx": 1, 
- "image_field": "image", 
- "image_view": 0, 
- "in_create": 0, 
- "is_submittable": 1, 
- "issingle": 0, 
- "istable": 0, 
- "max_attachments": 0, 
- "modified": "2019-05-01 16:36:05.197126", 
- "modified_by": "Administrator", 
- "module": "Manufacturing", 
- "name": "BOM", 
- "owner": "Administrator", 
+ ],
+ "icon": "fa fa-sitemap",
+ "idx": 1,
+ "image_field": "image",
+ "is_submittable": 1,
+ "modified": "2019-07-30 17:00:09.665068",
+ "modified_by": "Administrator",
+ "module": "Manufacturing",
+ "name": "BOM",
+ "owner": "Administrator",
  "permissions": [
   {
-   "amend": 0, 
-   "cancel": 1, 
-   "create": 1, 
-   "delete": 1, 
-   "email": 1, 
-   "export": 0, 
-   "if_owner": 0, 
-   "import": 0, 
-   "permlevel": 0, 
-   "print": 1, 
-   "read": 1, 
-   "report": 1, 
-   "role": "Manufacturing Manager", 
-   "set_user_permissions": 0, 
-   "share": 1, 
-   "submit": 1, 
+   "cancel": 1,
+   "create": 1,
+   "delete": 1,
+   "email": 1,
+   "print": 1,
+   "read": 1,
+   "report": 1,
+   "role": "Manufacturing Manager",
+   "share": 1,
+   "submit": 1,
    "write": 1
-  }, 
+  },
   {
-   "amend": 0, 
-   "cancel": 1, 
-   "create": 1, 
-   "delete": 1, 
-   "email": 1, 
-   "export": 0, 
-   "if_owner": 0, 
-   "import": 0, 
-   "permlevel": 0, 
-   "print": 1, 
-   "read": 1, 
-   "report": 1, 
-   "role": "Manufacturing User", 
-   "set_user_permissions": 0, 
-   "share": 1, 
-   "submit": 1, 
+   "cancel": 1,
+   "create": 1,
+   "delete": 1,
+   "email": 1,
+   "print": 1,
+   "read": 1,
+   "report": 1,
+   "role": "Manufacturing User",
+   "share": 1,
+   "submit": 1,
    "write": 1
   }
- ], 
- "quick_entry": 0, 
- "read_only": 0, 
- "read_only_onload": 0, 
- "search_fields": "item, item_name", 
- "show_name_in_global_search": 1, 
- "sort_field": "modified", 
- "sort_order": "DESC", 
- "track_changes": 1, 
- "track_seen": 0, 
- "track_views": 0
+ ],
+ "search_fields": "item, item_name",
+ "show_name_in_global_search": 1,
+ "sort_field": "modified",
+ "sort_order": "DESC",
+ "track_changes": 1
 }
\ No newline at end of file
diff --git a/erpnext/manufacturing/doctype/bom/bom.py b/erpnext/manufacturing/doctype/bom/bom.py
index a716293..22c2f69 100644
--- a/erpnext/manufacturing/doctype/bom/bom.py
+++ b/erpnext/manufacturing/doctype/bom/bom.py
@@ -9,6 +9,7 @@
 from frappe.website.website_generator import WebsiteGenerator
 from erpnext.stock.get_item_details import get_conversion_factor
 from erpnext.stock.get_item_details import get_price_list_rate
+from frappe.core.doctype.version.version import get_diff
 
 import functools
 
@@ -763,3 +764,52 @@
 			'description': name[0],
 			'amount': items.get(name[0])
 		})
+
+@frappe.whitelist()
+def get_bom_diff(bom1, bom2):
+	from frappe.model import table_fields
+
+	doc1 = frappe.get_doc('BOM', bom1)
+	doc2 = frappe.get_doc('BOM', bom2)
+
+	out = get_diff(doc1, doc2)
+	out.row_changed = []
+	out.added = []
+	out.removed = []
+
+	meta = doc1.meta
+
+	identifiers = {
+		'operations': 'operation',
+		'items': 'item_code',
+		'scrap_items': 'item_code',
+		'exploded_items': 'item_code'
+	}
+
+	for df in meta.fields:
+		old_value, new_value = doc1.get(df.fieldname), doc2.get(df.fieldname)
+
+		if df.fieldtype in table_fields:
+			identifier = identifiers[df.fieldname]
+			# make maps
+			old_row_by_identifier, new_row_by_identifier = {}, {}
+			for d in old_value:
+				old_row_by_identifier[d.get(identifier)] = d
+			for d in new_value:
+				new_row_by_identifier[d.get(identifier)] = d
+
+			# check rows for additions, changes
+			for i, d in enumerate(new_value):
+				if d.get(identifier) in old_row_by_identifier:
+					diff = get_diff(old_row_by_identifier[d.get(identifier)], d, for_child=True)
+					if diff and diff.changed:
+						out.row_changed.append((df.fieldname, i, d.get(identifier), diff.changed))
+				else:
+					out.added.append([df.fieldname, d.as_dict()])
+
+			# check for deletions
+			for d in old_value:
+				if not d.get(identifier) in new_row_by_identifier:
+					out.removed.append([df.fieldname, d.as_dict()])
+
+	return out
diff --git a/erpnext/manufacturing/page/bom_comparison_tool/__init__.py b/erpnext/manufacturing/page/bom_comparison_tool/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/erpnext/manufacturing/page/bom_comparison_tool/__init__.py
diff --git a/erpnext/manufacturing/page/bom_comparison_tool/bom_comparison_tool.js b/erpnext/manufacturing/page/bom_comparison_tool/bom_comparison_tool.js
new file mode 100644
index 0000000..7152d3d
--- /dev/null
+++ b/erpnext/manufacturing/page/bom_comparison_tool/bom_comparison_tool.js
@@ -0,0 +1,213 @@
+frappe.pages['bom-comparison-tool'].on_page_load = function(wrapper) {
+	var page = frappe.ui.make_app_page({
+		parent: wrapper,
+		title: __('BOM Comparison Tool'),
+		single_column: true
+	});
+
+	new erpnext.BOMComparisonTool(page);
+}
+
+erpnext.BOMComparisonTool = class BOMComparisonTool {
+	constructor(page) {
+		this.page = page;
+		this.make_form();
+	}
+
+	make_form() {
+		this.form = new frappe.ui.FieldGroup({
+			fields: [
+				{
+					label: __('BOM 1'),
+					fieldname: 'name1',
+					fieldtype: 'Link',
+					options: 'BOM',
+					change: () => this.fetch_and_render()
+				},
+				{
+					fieldtype: 'Column Break'
+				},
+				{
+					label: __('BOM 2'),
+					fieldname: 'name2',
+					fieldtype: 'Link',
+					options: 'BOM',
+					change: () => this.fetch_and_render()
+				},
+				{
+					fieldtype: 'Section Break'
+				},
+				{
+					fieldtype: 'HTML',
+					fieldname: 'preview'
+				}
+			],
+			body: this.page.body
+		});
+		this.form.make();
+	}
+
+	fetch_and_render() {
+		let { name1, name2 } = this.form.get_values();
+		if (!(name1 && name2)) {
+			this.form.get_field('preview').html('');
+			return;
+		}
+
+		// set working state
+		this.form.get_field('preview').html(`
+			<div class="text-muted margin-top">
+				${__("Fetching...")}
+			</div>
+		`);
+
+		frappe.call('erpnext.manufacturing.doctype.bom.bom.get_bom_diff', {
+			bom1: name1,
+			bom2: name2
+		}).then(r => {
+			let diff = r.message;
+			frappe.model.with_doctype('BOM', () => {
+				this.render('BOM', name1, name2, diff);
+			});
+		});
+	}
+
+	render(doctype, name1, name2, diff) {
+
+		let change_html = (title, doctype, changed) => {
+			let values_changed = this.get_changed_values(doctype, changed)
+				.map(change => {
+					let [fieldname, value1, value2] = change;
+					return `
+						<tr>
+							<td>${frappe.meta.get_label(doctype, fieldname)}</td>
+							<td>${value1}</td>
+							<td>${value2}</td>
+						</tr>
+					`;
+				})
+				.join('');
+
+			return `
+				<h4 class="margin-top">${title}</h4>
+				<div>
+					<table class="table table-bordered">
+						<tr>
+							<th width="33%">${__('Field')}</th>
+							<th width="33%">${name1}</th>
+							<th width="33%">${name2}</th>
+						</tr>
+						${values_changed}
+					</table>
+				</div>
+			`;
+		}
+
+		let value_changes = change_html(__('Values Changed'), doctype, diff.changed);
+
+		let row_changes_by_fieldname = group_items(diff.row_changed, change => change[0]);
+
+		let table_changes = Object.keys(row_changes_by_fieldname).map(fieldname => {
+			let changes = row_changes_by_fieldname[fieldname];
+			let df = frappe.meta.get_docfield(doctype, fieldname);
+
+			let html = changes.map(change => {
+				let [fieldname,, item_code, changes] = change;
+				let df = frappe.meta.get_docfield(doctype, fieldname);
+				let child_doctype = df.options;
+				let values_changed = this.get_changed_values(child_doctype, changes);
+
+				return values_changed.map((change, i) => {
+					let [fieldname, value1, value2] = change;
+					let th = i === 0
+						? `<th rowspan="${values_changed.length}">${item_code}</th>`
+						: '';
+					return `
+						<tr>
+							${th}
+							<td>${frappe.meta.get_label(child_doctype, fieldname)}</td>
+							<td>${value1}</td>
+							<td>${value2}</td>
+						</tr>
+					`;
+				}).join('');
+			}).join('');
+
+			return `
+				<h4 class="margin-top">${__('Changes in {0}', [df.label])}</h4>
+				<table class="table table-bordered">
+					<tr>
+						<th width="25%">${__('Item Code')}</th>
+						<th width="25%">${__('Field')}</th>
+						<th width="25%">${name1}</th>
+						<th width="25%">${name2}</th>
+					</tr>
+					${html}
+				</table>
+			`;
+		}).join('');
+
+		let get_added_removed_html = (title, grouped_items) => {
+			return Object.keys(grouped_items).map(fieldname => {
+				let rows = grouped_items[fieldname];
+				let df = frappe.meta.get_docfield(doctype, fieldname);
+				let fields = frappe.meta.get_docfields(df.options)
+					.filter(df => df.in_list_view);
+
+				let html = rows.map(row => {
+					let [, doc] = row;
+					let cells = fields
+						.map(df => `<td>${doc[df.fieldname]}</td>`)
+						.join('');
+					return `<tr>${cells}</tr>`;
+				}).join('');
+
+				let header = fields.map(df => `<th>${df.label}</th>`).join('');
+				return `
+					<h4 class="margin-top">${$.format(title, [df.label])}</h4>
+					<table class="table table-bordered">
+						<tr>${header}</tr>
+						${html}
+					</table>
+				`;
+			}).join('');
+		};
+
+		let added_by_fieldname = group_items(diff.added, change => change[0]);
+		let removed_by_fieldname = group_items(diff.removed, change => change[0]);
+
+		let added_html = get_added_removed_html(__('Rows Added in {0}'), added_by_fieldname);
+		let removed_html = get_added_removed_html(__('Rows Removed in {0}'), removed_by_fieldname);
+
+		let html = `
+			${value_changes}
+			${table_changes}
+			${added_html}
+			${removed_html}
+		`;
+
+		this.form.get_field('preview').html(html);
+	}
+
+	get_changed_values(doctype, changed) {
+		return changed.filter(change => {
+			let [fieldname, value1, value2] = change;
+			if (!value1) value1 = '';
+			if (!value2) value2 = '';
+			if (value1 === value2) return false;
+			let df = frappe.meta.get_docfield(doctype, fieldname);
+			if (!df) return false;
+			if (df.hidden) return false;
+			return true;
+		});
+	}
+};
+
+function group_items(array, fn) {
+	return array.reduce((acc, item) => {
+		let key = fn(item);
+		acc[key] = acc[key] || [];
+		acc[key].push(item);
+		return acc;
+	}, {});
+}
diff --git a/erpnext/manufacturing/page/bom_comparison_tool/bom_comparison_tool.json b/erpnext/manufacturing/page/bom_comparison_tool/bom_comparison_tool.json
new file mode 100644
index 0000000..067a106
--- /dev/null
+++ b/erpnext/manufacturing/page/bom_comparison_tool/bom_comparison_tool.json
@@ -0,0 +1,30 @@
+{
+ "content": null,
+ "creation": "2019-07-29 13:24:38.201981",
+ "docstatus": 0,
+ "doctype": "Page",
+ "idx": 0,
+ "modified": "2019-07-29 13:24:38.201981",
+ "modified_by": "Administrator",
+ "module": "Manufacturing",
+ "name": "bom-comparison-tool",
+ "owner": "Administrator",
+ "page_name": "BOM Comparison Tool",
+ "restrict_to_domain": "Manufacturing",
+ "roles": [
+  {
+   "role": "System Manager"
+  },
+  {
+   "role": "Manufacturing User"
+  },
+  {
+   "role": "Manufacturing Manager"
+  }
+ ],
+ "script": null,
+ "standard": "Yes",
+ "style": null,
+ "system_page": 0,
+ "title": "BOM Comparison Tool"
+}
\ No newline at end of file