diff --git a/erpnext/buying/doctype/purchase_order/purchase_order.js b/erpnext/buying/doctype/purchase_order/purchase_order.js
index 2cad1fb..d347026 100644
--- a/erpnext/buying/doctype/purchase_order/purchase_order.js
+++ b/erpnext/buying/doctype/purchase_order/purchase_order.js
@@ -7,17 +7,6 @@
 
 frappe.ui.form.on("Purchase Order", {
 	setup: function(frm) {
-
-		frm.set_query("reserve_warehouse", "supplied_items", function() {
-			return {
-				filters: {
-					"company": frm.doc.company,
-					"name": ['!=', frm.doc.supplier_warehouse],
-					"is_group": 0
-				}
-			}
-		});
-
 		frm.set_indicator_formatter('item_code',
 			function(doc) { return (doc.qty<=doc.received_qty) ? "green" : "orange" })
 
@@ -59,39 +48,6 @@
 			frm.set_value("tax_withholding_category", frm.supplier_tds);
 		}
 	},
-
-	refresh: function(frm) {
-		frm.trigger('get_materials_from_supplier');
-	},
-
-	get_materials_from_supplier: function(frm) {
-		let po_details = [];
-
-		if (frm.doc.supplied_items && (frm.doc.per_received == 100 || frm.doc.status === 'Closed')) {
-			frm.doc.supplied_items.forEach(d => {
-				if (d.total_supplied_qty && d.total_supplied_qty != d.consumed_qty) {
-					po_details.push(d.name)
-				}
-			});
-		}
-
-		if (po_details && po_details.length) {
-			frm.add_custom_button(__('Return of Components'), () => {
-				frm.call({
-					method: 'erpnext.buying.doctype.purchase_order.purchase_order.get_materials_from_supplier',
-					freeze: true,
-					freeze_message: __('Creating Stock Entry'),
-					args: { purchase_order: frm.doc.name, po_details: po_details },
-					callback: function(r) {
-						if (r && r.message) {
-							const doc = frappe.model.sync(r.message);
-							frappe.set_route("Form", doc[0].doctype, doc[0].name);
-						}
-					}
-				});
-			}, __('Create'));
-		}
-	}
 });
 
 frappe.ui.form.on("Purchase Order Item", {
@@ -112,13 +68,11 @@
 		this.frm.custom_make_buttons = {
 			'Purchase Receipt': 'Purchase Receipt',
 			'Purchase Invoice': 'Purchase Invoice',
-			'Stock Entry': 'Material to Supplier',
 			'Payment Entry': 'Payment',
 			'Subcontracting Order': 'Subcontracting Order'
 		}
 
 		super.setup();
-
 	}
 
 	refresh(doc, cdt, cdn) {
@@ -185,10 +139,6 @@
 				if (doc.status != "On Hold") {
 					if(flt(doc.per_received) < 100 && allow_receipt) {
 						cur_frm.add_custom_button(__('Purchase Receipt'), this.make_purchase_receipt, __('Create'));
-						if(doc.is_subcontracted && me.has_unsupplied_items()) {
-							cur_frm.add_custom_button(__('Material to Supplier'),
-								function() { me.make_stock_entry(); }, __("Transfer"));
-						}
 						if (doc.is_subcontracted) {
 							cur_frm.add_custom_button(__('Subcontracting Order'), this.make_subcontracting_order, __('Create'));
 						}
@@ -258,142 +208,6 @@
 		set_schedule_date(this.frm);
 	}
 
-	has_unsupplied_items() {
-		return this.frm.doc['supplied_items'].some(item => item.required_qty > item.supplied_qty);
-	}
-
-	make_stock_entry() {
-		var items = $.map(cur_frm.doc.items, function(d) { return d.bom ? d.item_code : false; });
-		var me = this;
-
-		if(items.length >= 1){
-			me.raw_material_data = [];
-			me.show_dialog = 1;
-			let title = __('Transfer Material to Supplier');
-			let fields = [
-			{fieldtype:'Section Break', label: __('Raw Materials')},
-			{fieldname: 'sub_con_rm_items', fieldtype: 'Table', label: __('Items'),
-				fields: [
-					{
-						fieldtype:'Data',
-						fieldname:'item_code',
-						label: __('Item'),
-						read_only:1,
-						in_list_view:1
-					},
-					{
-						fieldtype:'Data',
-						fieldname:'rm_item_code',
-						label: __('Raw Material'),
-						read_only:1,
-						in_list_view:1
-					},
-					{
-						fieldtype:'Float',
-						read_only:1,
-						fieldname:'qty',
-						label: __('Quantity'),
-						read_only:1,
-						in_list_view:1
-					},
-					{
-						fieldtype:'Data',
-						read_only:1,
-						fieldname:'warehouse',
-						label: __('Reserve Warehouse'),
-						in_list_view:1
-					},
-					{
-						fieldtype:'Float',
-						read_only:1,
-						fieldname:'rate',
-						label: __('Rate'),
-						hidden:1
-					},
-					{
-						fieldtype:'Float',
-						read_only:1,
-						fieldname:'amount',
-						label: __('Amount'),
-						hidden:1
-					},
-					{
-						fieldtype:'Link',
-						read_only:1,
-						fieldname:'uom',
-						label: __('UOM'),
-						hidden:1
-					}
-				],
-				data: me.raw_material_data,
-				get_data: function() {
-					return me.raw_material_data;
-				}
-			}
-		]
-
-		me.dialog = new frappe.ui.Dialog({
-			title: title, fields: fields
-		});
-
-		if (me.frm.doc['supplied_items']) {
-			me.frm.doc['supplied_items'].forEach((item, index) => {
-			if (item.rm_item_code && item.main_item_code && item.required_qty - item.supplied_qty != 0) {
-					me.raw_material_data.push ({
-						'name':item.name,
-						'item_code': item.main_item_code,
-						'rm_item_code': item.rm_item_code,
-						'item_name': item.rm_item_code,
-						'qty': item.required_qty - item.supplied_qty,
-						'warehouse':item.reserve_warehouse,
-						'rate':item.rate,
-						'amount':item.amount,
-						'stock_uom':item.stock_uom
-					});
-					me.dialog.fields_dict.sub_con_rm_items.grid.refresh();
-				}
-			})
-		}
-
-		me.dialog.get_field('sub_con_rm_items').check_all_rows()
-
-		me.dialog.show()
-		this.dialog.set_primary_action(__('Transfer'), function() {
-			me.values = me.dialog.get_values();
-			if(me.values) {
-				me.values.sub_con_rm_items.map((row,i) => {
-					if (!row.item_code || !row.rm_item_code || !row.warehouse || !row.qty || row.qty === 0) {
-						let row_id = i+1;
-						frappe.throw(__("Item Code, warehouse and quantity are required on row {0}", [row_id]));
-					}
-				})
-				me._make_rm_stock_entry(me.dialog.fields_dict.sub_con_rm_items.grid.get_selected_children())
-				me.dialog.hide()
-				}
-			});
-		}
-
-		me.dialog.get_close_btn().on('click', () => {
-			me.dialog.hide();
-		});
-
-	}
-
-	_make_rm_stock_entry(rm_items) {
-		frappe.call({
-			method:"erpnext.buying.doctype.purchase_order.purchase_order.make_rm_stock_entry",
-			args: {
-				purchase_order: cur_frm.doc.name,
-				rm_items: rm_items
-			}
-			,
-			callback: function(r) {
-				var doclist = frappe.model.sync(r.message);
-				frappe.set_route("Form", doclist[0].doctype, doclist[0].name);
-			}
-		});
-	}
-
 	make_inter_company_order(frm) {
 		frappe.model.open_mapped_doc({
 			method: "erpnext.buying.doctype.purchase_order.purchase_order.make_inter_company_sales_order",
@@ -632,28 +446,10 @@
 	}
 }
 
-cur_frm.fields_dict['items'].grid.get_field('bom').get_query = function(doc, cdt, cdn) {
-	var d = locals[cdt][cdn]
-	return {
-		filters: [
-			['BOM', 'item', '=', d.item_code],
-			['BOM', 'is_active', '=', '1'],
-			['BOM', 'docstatus', '=', '1'],
-			['BOM', 'company', '=', doc.company]
-		]
-	}
-}
-
 function set_schedule_date(frm) {
 	if(frm.doc.schedule_date){
 		erpnext.utils.copy_value_in_all_rows(frm.doc, frm.doc.doctype, frm.doc.name, "items", "schedule_date");
 	}
 }
 
-frappe.provide("erpnext.buying");
-
-frappe.ui.form.on("Purchase Order", "is_subcontracted", function(frm) {
-	if (frm.doc.is_subcontracted) {
-		erpnext.buying.get_default_bom(frm);
-	}
-});
+frappe.provide("erpnext.buying");
\ No newline at end of file
diff --git a/erpnext/buying/doctype/purchase_order/purchase_order.py b/erpnext/buying/doctype/purchase_order/purchase_order.py
index 1945079..234bec1 100644
--- a/erpnext/buying/doctype/purchase_order/purchase_order.py
+++ b/erpnext/buying/doctype/purchase_order/purchase_order.py
@@ -24,7 +24,6 @@
 from erpnext.setup.doctype.item_group.item_group import get_item_group_defaults
 from erpnext.stock.doctype.item.item import get_item_defaults, get_last_purchase_details
 from erpnext.stock.stock_balance import get_ordered_qty, update_bin_qty
-from erpnext.stock.utils import get_bin
 
 form_grid_templates = {"items": "templates/form_grid/item_grid.html"}
 
@@ -70,7 +69,6 @@
 		self.validate_for_subcontracting()
 		self.validate_minimum_order_qty()
 		self.validate_fg_item_for_subcontracting()
-		self.create_raw_materials_supplied("supplied_items")
 		self.set_received_qty_for_drop_ship_items()
 		validate_inter_company_party(
 			self.doctype, self.supplier, self.company, self.inter_company_order_reference
@@ -307,9 +305,6 @@
 		self.set_status(update=True, status=status)
 		self.update_requested_qty()
 		self.update_ordered_qty()
-		if self.is_subcontracted:
-			self.update_reserved_qty_for_subcontract()
-
 		self.notify_update()
 		clear_doctype_notifications(self)
 
@@ -324,9 +319,6 @@
 		self.update_ordered_qty()
 		self.validate_budget()
 
-		if self.is_subcontracted:
-			self.update_reserved_qty_for_subcontract()
-
 		frappe.get_doc("Authorization Control").validate_approving_authority(
 			self.doctype, self.company, self.base_grand_total
 		)
@@ -344,9 +336,6 @@
 		if self.has_drop_ship_item():
 			self.update_delivered_qty_in_sales_order()
 
-		if self.is_subcontracted:
-			self.update_reserved_qty_for_subcontract()
-
 		self.check_on_hold_or_closed_status()
 
 		frappe.db.set(self, "status", "Cancelled")
@@ -416,12 +405,6 @@
 			if item.delivered_by_supplier == 1:
 				item.received_qty = item.qty
 
-	def update_reserved_qty_for_subcontract(self):
-		for d in self.supplied_items:
-			if d.rm_item_code:
-				stock_bin = get_bin(d.rm_item_code, d.reserve_warehouse)
-				stock_bin.update_reserved_qty_for_sub_contracting()
-
 	def update_receiving_percentage(self):
 		total_qty, received_qty = 0.0, 0.0
 		for item in self.items:
@@ -599,78 +582,6 @@
 	return doc
 
 
-@frappe.whitelist()
-def make_rm_stock_entry(purchase_order, rm_items):
-	rm_items_list = rm_items
-
-	if isinstance(rm_items, str):
-		rm_items_list = json.loads(rm_items)
-	elif not rm_items:
-		frappe.throw(_("No Items available for transfer"))
-
-	if rm_items_list:
-		fg_items = list(set(d["item_code"] for d in rm_items_list))
-	else:
-		frappe.throw(_("No Items selected for transfer"))
-
-	if purchase_order:
-		purchase_order = frappe.get_doc("Purchase Order", purchase_order)
-
-	if fg_items:
-		items = tuple(set(d["rm_item_code"] for d in rm_items_list))
-		item_wh = get_item_details(items)
-
-		stock_entry = frappe.new_doc("Stock Entry")
-		stock_entry.purpose = "Send to Subcontractor"
-		stock_entry.purchase_order = purchase_order.name
-		stock_entry.supplier = purchase_order.supplier
-		stock_entry.supplier_name = purchase_order.supplier_name
-		stock_entry.supplier_address = purchase_order.supplier_address
-		stock_entry.address_display = purchase_order.address_display
-		stock_entry.company = purchase_order.company
-		stock_entry.to_warehouse = purchase_order.supplier_warehouse
-		stock_entry.set_stock_entry_type()
-
-		for item_code in fg_items:
-			for rm_item_data in rm_items_list:
-				if rm_item_data["item_code"] == item_code:
-					rm_item_code = rm_item_data["rm_item_code"]
-					items_dict = {
-						rm_item_code: {
-							"po_detail": rm_item_data.get("name"),
-							"item_name": rm_item_data["item_name"],
-							"description": item_wh.get(rm_item_code, {}).get("description", ""),
-							"qty": rm_item_data["qty"],
-							"from_warehouse": rm_item_data["warehouse"],
-							"stock_uom": rm_item_data["stock_uom"],
-							"serial_no": rm_item_data.get("serial_no"),
-							"batch_no": rm_item_data.get("batch_no"),
-							"main_item_code": rm_item_data["item_code"],
-							"allow_alternative_item": item_wh.get(rm_item_code, {}).get("allow_alternative_item"),
-						}
-					}
-					stock_entry.add_to_stock_entry_detail(items_dict)
-		return stock_entry.as_dict()
-	else:
-		frappe.throw(_("No Items selected for transfer"))
-	return purchase_order.name
-
-
-def get_item_details(items):
-	item_details = {}
-	for d in frappe.db.sql(
-		"""select item_code, description, allow_alternative_item from `tabItem`
-		where name in ({0})""".format(
-			", ".join(["%s"] * len(items))
-		),
-		items,
-		as_dict=1,
-	):
-		item_details[d.item_code] = d
-
-	return item_details
-
-
 def get_list_context(context=None):
 	from erpnext.controllers.website_list_for_contact import get_list_context
 
@@ -701,67 +612,6 @@
 
 
 @frappe.whitelist()
-def get_materials_from_supplier(purchase_order, po_details):
-	if isinstance(po_details, str):
-		po_details = json.loads(po_details)
-
-	doc = frappe.get_cached_doc("Purchase Order", purchase_order)
-	doc.initialized_fields()
-	doc.purchase_orders = [doc.name]
-	doc.get_available_materials()
-
-	if not doc.available_materials:
-		frappe.throw(
-			_("Materials are already received against the purchase order {0}").format(purchase_order)
-		)
-
-	return make_return_stock_entry_for_subcontract(doc.available_materials, doc, po_details)
-
-
-def make_return_stock_entry_for_subcontract(available_materials, po_doc, po_details):
-	ste_doc = frappe.new_doc("Stock Entry")
-	ste_doc.purpose = "Material Transfer"
-	ste_doc.purchase_order = po_doc.name
-	ste_doc.company = po_doc.company
-	ste_doc.is_return = 1
-
-	for key, value in available_materials.items():
-		if not value.qty:
-			continue
-
-		if value.batch_no:
-			for batch_no, qty in value.batch_no.items():
-				if qty > 0:
-					add_items_in_ste(ste_doc, value, value.qty, po_details, batch_no)
-		else:
-			add_items_in_ste(ste_doc, value, value.qty, po_details)
-
-	ste_doc.set_stock_entry_type()
-	ste_doc.calculate_rate_and_amount()
-
-	return ste_doc
-
-
-def add_items_in_ste(ste_doc, row, qty, po_details, batch_no=None):
-	item = ste_doc.append("items", row.item_details)
-
-	po_detail = list(set(row.po_details).intersection(po_details))
-	item.update(
-		{
-			"qty": qty,
-			"batch_no": batch_no,
-			"basic_rate": row.item_details["rate"],
-			"po_detail": po_detail[0] if po_detail else "",
-			"s_warehouse": row.item_details["t_warehouse"],
-			"t_warehouse": row.item_details["s_warehouse"],
-			"item_code": row.item_details["rm_item_code"],
-			"subcontracted_item": row.item_details["main_item_code"],
-			"serial_no": "\n".join(row.serial_no) if row.serial_no else "",
-		}
-	)
-
-
-@frappe.whitelist()
 def make_subcontracting_order(source_name, target_doc=None):
 	return get_mapped_subcontracting_order(source_name, target_doc)
 
diff --git a/erpnext/buying/doctype/purchase_order/test_purchase_order.py b/erpnext/buying/doctype/purchase_order/test_purchase_order.py
index 1a7f2dd..e1da54e 100644
--- a/erpnext/buying/doctype/purchase_order/test_purchase_order.py
+++ b/erpnext/buying/doctype/purchase_order/test_purchase_order.py
@@ -13,9 +13,6 @@
 	make_purchase_invoice as make_pi_from_po,
 )
 from erpnext.buying.doctype.purchase_order.purchase_order import make_purchase_receipt
-from erpnext.buying.doctype.purchase_order.purchase_order import (
-	make_rm_stock_entry as make_subcontract_transfer_entry,
-)
 from erpnext.controllers.accounts_controller import update_child_qty_rate
 from erpnext.manufacturing.doctype.blanket_order.test_blanket_order import make_blanket_order
 from erpnext.stock.doctype.item.test_item import make_item
@@ -24,7 +21,6 @@
 from erpnext.stock.doctype.purchase_receipt.purchase_receipt import (
 	make_purchase_invoice as make_pi_from_pr,
 )
-from erpnext.stock.doctype.stock_entry.test_stock_entry import make_stock_entry
 
 
 class TestPurchaseOrder(FrappeTestCase):
@@ -389,31 +385,6 @@
 		new_item_with_tax.delete()
 		frappe.get_doc("Item Tax Template", "Test Update Items Template - _TC").delete()
 
-	def test_update_child_uom_conv_factor_change(self):
-		po = create_purchase_order(item_code="_Test FG Item", is_subcontracted=1)
-		total_reqd_qty = sum([d.get("required_qty") for d in po.as_dict().get("supplied_items")])
-
-		trans_item = json.dumps(
-			[
-				{
-					"item_code": po.get("items")[0].item_code,
-					"rate": po.get("items")[0].rate,
-					"qty": po.get("items")[0].qty,
-					"uom": "_Test UOM 1",
-					"conversion_factor": 2,
-					"docname": po.get("items")[0].name,
-				}
-			]
-		)
-		update_child_qty_rate("Purchase Order", trans_item, po.name)
-		po.reload()
-
-		total_reqd_qty_after_change = sum(
-			d.get("required_qty") for d in po.as_dict().get("supplied_items")
-		)
-
-		self.assertEqual(total_reqd_qty_after_change, 2 * total_reqd_qty)
-
 	def test_update_qty(self):
 		po = create_purchase_order()
 
@@ -572,10 +543,6 @@
 		)
 		automatically_fetch_payment_terms(enable=0)
 
-	def test_subcontracting(self):
-		po = create_purchase_order(item_code="_Test FG Item", is_subcontracted=1)
-		self.assertEqual(len(po.get("supplied_items")), 2)
-
 	def test_warehouse_company_validation(self):
 		from erpnext.stock.utils import InvalidWarehouseCompany
 
@@ -740,379 +707,6 @@
 		pi.insert()
 		self.assertTrue(pi.get("payment_schedule"))
 
-	def test_reserved_qty_subcontract_po(self):
-		# Make stock available for raw materials
-		make_stock_entry(target="_Test Warehouse - _TC", qty=10, basic_rate=100)
-		make_stock_entry(
-			target="_Test Warehouse - _TC", item_code="_Test Item Home Desktop 100", qty=20, basic_rate=100
-		)
-		make_stock_entry(
-			target="_Test Warehouse 1 - _TC", item_code="_Test Item", qty=30, basic_rate=100
-		)
-		make_stock_entry(
-			target="_Test Warehouse 1 - _TC",
-			item_code="_Test Item Home Desktop 100",
-			qty=30,
-			basic_rate=100,
-		)
-
-		bin1 = frappe.db.get_value(
-			"Bin",
-			filters={"warehouse": "_Test Warehouse - _TC", "item_code": "_Test Item"},
-			fieldname=["reserved_qty_for_sub_contract", "projected_qty", "modified"],
-			as_dict=1,
-		)
-
-		# Submit PO
-		po = create_purchase_order(item_code="_Test FG Item", is_subcontracted=1)
-
-		bin2 = frappe.db.get_value(
-			"Bin",
-			filters={"warehouse": "_Test Warehouse - _TC", "item_code": "_Test Item"},
-			fieldname=["reserved_qty_for_sub_contract", "projected_qty", "modified"],
-			as_dict=1,
-		)
-
-		self.assertEqual(bin2.reserved_qty_for_sub_contract, bin1.reserved_qty_for_sub_contract + 10)
-		self.assertEqual(bin2.projected_qty, bin1.projected_qty - 10)
-		self.assertNotEqual(bin1.modified, bin2.modified)
-
-		# Create stock transfer
-		rm_item = [
-			{
-				"item_code": "_Test FG Item",
-				"rm_item_code": "_Test Item",
-				"item_name": "_Test Item",
-				"qty": 6,
-				"warehouse": "_Test Warehouse - _TC",
-				"rate": 100,
-				"amount": 600,
-				"stock_uom": "Nos",
-			}
-		]
-		rm_item_string = json.dumps(rm_item)
-		se = frappe.get_doc(make_subcontract_transfer_entry(po.name, rm_item_string))
-		se.to_warehouse = "_Test Warehouse 1 - _TC"
-		se.save()
-		se.submit()
-
-		bin3 = frappe.db.get_value(
-			"Bin",
-			filters={"warehouse": "_Test Warehouse - _TC", "item_code": "_Test Item"},
-			fieldname="reserved_qty_for_sub_contract",
-			as_dict=1,
-		)
-
-		self.assertEqual(bin3.reserved_qty_for_sub_contract, bin2.reserved_qty_for_sub_contract - 6)
-
-		# close PO
-		po.update_status("Closed")
-		bin4 = frappe.db.get_value(
-			"Bin",
-			filters={"warehouse": "_Test Warehouse - _TC", "item_code": "_Test Item"},
-			fieldname="reserved_qty_for_sub_contract",
-			as_dict=1,
-		)
-
-		self.assertEqual(bin4.reserved_qty_for_sub_contract, bin1.reserved_qty_for_sub_contract)
-
-		# Re-open PO
-		po.update_status("Submitted")
-		bin5 = frappe.db.get_value(
-			"Bin",
-			filters={"warehouse": "_Test Warehouse - _TC", "item_code": "_Test Item"},
-			fieldname="reserved_qty_for_sub_contract",
-			as_dict=1,
-		)
-
-		self.assertEqual(bin5.reserved_qty_for_sub_contract, bin2.reserved_qty_for_sub_contract - 6)
-
-		make_stock_entry(
-			target="_Test Warehouse 1 - _TC", item_code="_Test Item", qty=40, basic_rate=100
-		)
-		make_stock_entry(
-			target="_Test Warehouse 1 - _TC",
-			item_code="_Test Item Home Desktop 100",
-			qty=40,
-			basic_rate=100,
-		)
-
-		# make Purchase Receipt against PO
-		pr = make_purchase_receipt(po.name)
-		pr.supplier_warehouse = "_Test Warehouse 1 - _TC"
-		pr.save()
-		pr.submit()
-
-		bin6 = frappe.db.get_value(
-			"Bin",
-			filters={"warehouse": "_Test Warehouse - _TC", "item_code": "_Test Item"},
-			fieldname="reserved_qty_for_sub_contract",
-			as_dict=1,
-		)
-
-		self.assertEqual(bin6.reserved_qty_for_sub_contract, bin1.reserved_qty_for_sub_contract)
-
-		# Cancel PR
-		pr.cancel()
-		bin7 = frappe.db.get_value(
-			"Bin",
-			filters={"warehouse": "_Test Warehouse - _TC", "item_code": "_Test Item"},
-			fieldname="reserved_qty_for_sub_contract",
-			as_dict=1,
-		)
-
-		self.assertEqual(bin7.reserved_qty_for_sub_contract, bin2.reserved_qty_for_sub_contract - 6)
-
-		# Make Purchase Invoice
-		pi = make_pi_from_po(po.name)
-		pi.update_stock = 1
-		pi.supplier_warehouse = "_Test Warehouse 1 - _TC"
-		pi.insert()
-		pi.submit()
-		bin8 = frappe.db.get_value(
-			"Bin",
-			filters={"warehouse": "_Test Warehouse - _TC", "item_code": "_Test Item"},
-			fieldname="reserved_qty_for_sub_contract",
-			as_dict=1,
-		)
-
-		self.assertEqual(bin8.reserved_qty_for_sub_contract, bin1.reserved_qty_for_sub_contract)
-
-		# Cancel PR
-		pi.cancel()
-		bin9 = frappe.db.get_value(
-			"Bin",
-			filters={"warehouse": "_Test Warehouse - _TC", "item_code": "_Test Item"},
-			fieldname="reserved_qty_for_sub_contract",
-			as_dict=1,
-		)
-
-		self.assertEqual(bin9.reserved_qty_for_sub_contract, bin2.reserved_qty_for_sub_contract - 6)
-
-		# Cancel Stock Entry
-		se.cancel()
-		bin10 = frappe.db.get_value(
-			"Bin",
-			filters={"warehouse": "_Test Warehouse - _TC", "item_code": "_Test Item"},
-			fieldname="reserved_qty_for_sub_contract",
-			as_dict=1,
-		)
-
-		self.assertEqual(bin10.reserved_qty_for_sub_contract, bin1.reserved_qty_for_sub_contract + 10)
-
-		# Cancel PO
-		po.reload()
-		po.cancel()
-		bin11 = frappe.db.get_value(
-			"Bin",
-			filters={"warehouse": "_Test Warehouse - _TC", "item_code": "_Test Item"},
-			fieldname="reserved_qty_for_sub_contract",
-			as_dict=1,
-		)
-
-		self.assertEqual(bin11.reserved_qty_for_sub_contract, bin1.reserved_qty_for_sub_contract)
-
-	def test_exploded_items_in_subcontracted(self):
-		item_code = "_Test Subcontracted FG Item 11"
-		make_subcontracted_item(item_code=item_code)
-
-		po = create_purchase_order(
-			item_code=item_code,
-			qty=1,
-			is_subcontracted=1,
-			supplier_warehouse="_Test Warehouse 1 - _TC",
-			include_exploded_items=1,
-		)
-
-		name = frappe.db.get_value("BOM", {"item": item_code}, "name")
-		bom = frappe.get_doc("BOM", name)
-
-		exploded_items = sorted(
-			[d.item_code for d in bom.exploded_items if not d.get("sourced_by_supplier")]
-		)
-		supplied_items = sorted([d.rm_item_code for d in po.supplied_items])
-		self.assertEqual(exploded_items, supplied_items)
-
-		po1 = create_purchase_order(
-			item_code=item_code,
-			qty=1,
-			is_subcontracted=1,
-			supplier_warehouse="_Test Warehouse 1 - _TC",
-			include_exploded_items=0,
-		)
-
-		supplied_items1 = sorted([d.rm_item_code for d in po1.supplied_items])
-		bom_items = sorted([d.item_code for d in bom.items if not d.get("sourced_by_supplier")])
-
-		self.assertEqual(supplied_items1, bom_items)
-
-	def test_backflush_based_on_stock_entry(self):
-		item_code = "_Test Subcontracted FG Item 1"
-		make_subcontracted_item(item_code=item_code)
-		make_item("Sub Contracted Raw Material 1", {"is_stock_item": 1, "is_sub_contracted_item": 1})
-
-		update_backflush_based_on("Material Transferred for Subcontract")
-
-		order_qty = 5
-		po = create_purchase_order(
-			item_code=item_code,
-			qty=order_qty,
-			is_subcontracted=1,
-			supplier_warehouse="_Test Warehouse 1 - _TC",
-		)
-
-		make_stock_entry(
-			target="_Test Warehouse - _TC", item_code="_Test Item Home Desktop 100", qty=20, basic_rate=100
-		)
-		make_stock_entry(
-			target="_Test Warehouse - _TC", item_code="Test Extra Item 1", qty=100, basic_rate=100
-		)
-		make_stock_entry(
-			target="_Test Warehouse - _TC", item_code="Test Extra Item 2", qty=10, basic_rate=100
-		)
-		make_stock_entry(
-			target="_Test Warehouse - _TC",
-			item_code="Sub Contracted Raw Material 1",
-			qty=10,
-			basic_rate=100,
-		)
-
-		rm_items = [
-			{
-				"item_code": item_code,
-				"rm_item_code": "Sub Contracted Raw Material 1",
-				"item_name": "_Test Item",
-				"qty": 10,
-				"warehouse": "_Test Warehouse - _TC",
-				"stock_uom": "Nos",
-			},
-			{
-				"item_code": item_code,
-				"rm_item_code": "_Test Item Home Desktop 100",
-				"item_name": "_Test Item Home Desktop 100",
-				"qty": 20,
-				"warehouse": "_Test Warehouse - _TC",
-				"stock_uom": "Nos",
-			},
-			{
-				"item_code": item_code,
-				"rm_item_code": "Test Extra Item 1",
-				"item_name": "Test Extra Item 1",
-				"qty": 10,
-				"warehouse": "_Test Warehouse - _TC",
-				"stock_uom": "Nos",
-			},
-			{
-				"item_code": item_code,
-				"rm_item_code": "Test Extra Item 2",
-				"stock_uom": "Nos",
-				"qty": 10,
-				"warehouse": "_Test Warehouse - _TC",
-				"item_name": "Test Extra Item 2",
-			},
-		]
-
-		rm_item_string = json.dumps(rm_items)
-		se = frappe.get_doc(make_subcontract_transfer_entry(po.name, rm_item_string))
-		se.submit()
-
-		pr = make_purchase_receipt(po.name)
-
-		received_qty = 2
-		# partial receipt
-		pr.get("items")[0].qty = received_qty
-		pr.save()
-		pr.submit()
-
-		transferred_items = sorted(
-			[d.item_code for d in se.get("items") if se.purchase_order == po.name]
-		)
-		issued_items = sorted([d.rm_item_code for d in pr.get("supplied_items")])
-
-		self.assertEqual(transferred_items, issued_items)
-		self.assertEqual(pr.get("items")[0].rm_supp_cost, 2000)
-
-		transferred_rm_map = frappe._dict()
-		for item in rm_items:
-			transferred_rm_map[item.get("rm_item_code")] = item
-
-		update_backflush_based_on("BOM")
-
-	def test_supplied_qty_against_subcontracted_po(self):
-		item_code = "_Test Subcontracted FG Item 5"
-		make_item("Sub Contracted Raw Material 4", {"is_stock_item": 1, "is_sub_contracted_item": 1})
-
-		make_subcontracted_item(item_code=item_code, raw_materials=["Sub Contracted Raw Material 4"])
-
-		update_backflush_based_on("Material Transferred for Subcontract")
-
-		order_qty = 250
-		po = create_purchase_order(
-			item_code=item_code,
-			qty=order_qty,
-			is_subcontracted=1,
-			supplier_warehouse="_Test Warehouse 1 - _TC",
-			do_not_save=True,
-		)
-
-		# Add same subcontracted items multiple times
-		po.append(
-			"items",
-			{
-				"item_code": item_code,
-				"qty": order_qty,
-				"schedule_date": add_days(nowdate(), 1),
-				"warehouse": "_Test Warehouse - _TC",
-			},
-		)
-
-		po.set_missing_values()
-		po.submit()
-
-		# Material receipt entry for the raw materials which will be send to supplier
-		make_stock_entry(
-			target="_Test Warehouse - _TC",
-			item_code="Sub Contracted Raw Material 4",
-			qty=500,
-			basic_rate=100,
-		)
-
-		rm_items = [
-			{
-				"item_code": item_code,
-				"rm_item_code": "Sub Contracted Raw Material 4",
-				"item_name": "_Test Item",
-				"qty": 250,
-				"warehouse": "_Test Warehouse - _TC",
-				"stock_uom": "Nos",
-				"name": po.supplied_items[0].name,
-			},
-			{
-				"item_code": item_code,
-				"rm_item_code": "Sub Contracted Raw Material 4",
-				"item_name": "_Test Item",
-				"qty": 250,
-				"warehouse": "_Test Warehouse - _TC",
-				"stock_uom": "Nos",
-			},
-		]
-
-		# Raw Materials transfer entry from stores to supplier's warehouse
-		rm_item_string = json.dumps(rm_items)
-		se = frappe.get_doc(make_subcontract_transfer_entry(po.name, rm_item_string))
-		se.submit()
-
-		# Test po_detail field has value or not
-		for item_row in se.items:
-			self.assertEqual(item_row.po_detail, po.supplied_items[item_row.idx - 1].name)
-
-		po_doc = frappe.get_doc("Purchase Order", po.name)
-		for row in po_doc.supplied_items:
-			# Valid that whether transferred quantity is matching with supplied qty or not in the purchase order
-			self.assertEqual(row.supplied_qty, 250.0)
-
-		update_backflush_based_on("BOM")
-
 	def test_advance_payment_entry_unlink_against_purchase_order(self):
 		from erpnext.accounts.doctype.payment_entry.test_payment_entry import get_payment_entry
 
@@ -1211,50 +805,6 @@
 	return pr
 
 
-def make_subcontracted_item(**args):
-	from erpnext.manufacturing.doctype.production_plan.test_production_plan import make_bom
-
-	args = frappe._dict(args)
-
-	if not frappe.db.exists("Item", args.item_code):
-		make_item(
-			args.item_code,
-			{
-				"is_stock_item": 1,
-				"is_sub_contracted_item": 1,
-				"has_batch_no": args.get("has_batch_no") or 0,
-			},
-		)
-
-	if not args.raw_materials:
-		if not frappe.db.exists("Item", "Test Extra Item 1"):
-			make_item(
-				"Test Extra Item 1",
-				{
-					"is_stock_item": 1,
-				},
-			)
-
-		if not frappe.db.exists("Item", "Test Extra Item 2"):
-			make_item(
-				"Test Extra Item 2",
-				{
-					"is_stock_item": 1,
-				},
-			)
-
-		args.raw_materials = ["_Test FG Item", "Test Extra Item 1"]
-
-	if not frappe.db.get_value("BOM", {"item": args.item_code}, "name"):
-		make_bom(item=args.item_code, raw_materials=args.get("raw_materials"))
-
-
-def update_backflush_based_on(based_on):
-	doc = frappe.get_doc("Buying Settings")
-	doc.backflush_raw_materials_of_subcontract_based_on = based_on
-	doc.save()
-
-
 def get_same_items():
 	return [
 		{
@@ -1341,4 +891,4 @@
 
 test_dependencies = ["BOM", "Item Price"]
 
-test_records = frappe.get_test_records("Purchase Order")
+test_records = frappe.get_test_records("Purchase Order")
\ No newline at end of file
diff --git a/erpnext/buying/doctype/purchase_order/test_records.json b/erpnext/buying/doctype/purchase_order/test_records.json
index 896050c..4df994a 100644
--- a/erpnext/buying/doctype/purchase_order/test_records.json
+++ b/erpnext/buying/doctype/purchase_order/test_records.json
@@ -8,40 +8,6 @@
   "doctype": "Purchase Order", 
   "base_grand_total": 5000.0, 
   "grand_total": 5000.0, 
-  "is_subcontracted": 1, 
-  "naming_series": "_T-Purchase Order-", 
-  "base_net_total": 5000.0, 
-  "items": [
-   {
-    "base_amount": 5000.0, 
-    "conversion_factor": 1.0, 
-    "description": "_Test FG Item", 
-    "doctype": "Purchase Order Item", 
-    "item_code": "_Test FG Item", 
-    "item_name": "_Test FG Item", 
-    "parentfield": "items", 
-    "qty": 10.0, 
-    "rate": 500.0, 
-    "schedule_date": "2013-03-01", 
-    "stock_uom": "_Test UOM", 
-    "uom": "_Test UOM", 
-    "warehouse": "_Test Warehouse - _TC"
-   }
-  ], 
-  "supplier": "_Test Supplier", 
-  "supplier_name": "_Test Supplier", 
-  "transaction_date": "2013-02-12",
-  "schedule_date": "2013-02-13"
- },
- {
-  "advance_paid": 0.0,  
-  "buying_price_list": "_Test Price List", 
-  "company": "_Test Company", 
-  "conversion_rate": 1.0, 
-  "currency": "INR", 
-  "doctype": "Purchase Order", 
-  "base_grand_total": 5000.0, 
-  "grand_total": 5000.0, 
   "is_subcontracted": 0, 
   "naming_series": "_T-Purchase Order-", 
   "base_net_total": 5000.0, 
diff --git a/erpnext/buying/doctype/purchase_order_item/purchase_order_item.json b/erpnext/buying/doctype/purchase_order_item/purchase_order_item.json
index 7f797cf..12eef79 100644
--- a/erpnext/buying/doctype/purchase_order_item/purchase_order_item.json
+++ b/erpnext/buying/doctype/purchase_order_item/purchase_order_item.json
@@ -574,7 +574,6 @@
    "read_only": 1
   },
   {
-   "depends_on": "eval:parent.is_subcontracted",
    "fieldname": "bom",
    "fieldtype": "Link",
    "label": "BOM",
@@ -584,7 +583,6 @@
   },
   {
    "default": "0",
-   "depends_on": "eval:parent.is_subcontracted",
    "fieldname": "include_exploded_items",
    "fieldtype": "Check",
    "hidden": 1,