fix: incorrect active serial nos due to backdated transactions

erpnext/stock/doctype/purchase_receipt/test_purchase_receipt.py

@@ -13,7 +13,6 @@ from erpnext.stock.doctype.item.test_item import create_item, make_item
 from erpnext.stock.doctype.purchase_receipt.purchase_receipt import make_purchase_invoice
 from erpnext.stock.doctype.serial_no.serial_no import SerialNoDuplicateError, get_serial_nos
 from erpnext.stock.doctype.warehouse.test_warehouse import create_warehouse
-from erpnext.stock.stock_ledger import SerialNoExistsInFutureTransaction
 
 
 class TestPurchaseReceipt(FrappeTestCase):
@@ -197,84 +196,6 @@ class TestPurchaseReceipt(FrappeTestCase):
 		self.assertFalse(frappe.db.get_value("Batch", {"item": item.name, "reference_name": pr.name}))
 		self.assertFalse(frappe.db.get_all("Serial No", {"batch_no": batch_no}))
 
-	def test_duplicate_serial_nos(self):
-		from erpnext.stock.doctype.delivery_note.test_delivery_note import create_delivery_note
-
-		item = frappe.db.exists("Item", {"item_name": "Test Serialized Item 123"})
-		if not item:
-			item = create_item("Test Serialized Item 123")
-			item.has_serial_no = 1
-			item.serial_no_series = "TSI123-.####"
-			item.save()
-		else:
-			item = frappe.get_doc("Item", {"item_name": "Test Serialized Item 123"})
-
-		# First make purchase receipt
-		pr = make_purchase_receipt(item_code=item.name, qty=2, rate=500)
-		pr.load_from_db()
-
-		serial_nos = frappe.db.get_value(
-			"Stock Ledger Entry",
-			{"voucher_type": "Purchase Receipt", "voucher_no": pr.name, "item_code": item.name},
-			"serial_no",
-		)
-
-		serial_nos = get_serial_nos(serial_nos)
-
-		self.assertEquals(get_serial_nos(pr.items[0].serial_no), serial_nos)
-
-		# Then tried to receive same serial nos in difference company
-		pr_different_company = make_purchase_receipt(
-			item_code=item.name,
-			qty=2,
-			rate=500,
-			serial_no="\n".join(serial_nos),
-			company="_Test Company 1",
-			do_not_submit=True,
-			warehouse="Stores - _TC1",
-		)
-
-		self.assertRaises(SerialNoDuplicateError, pr_different_company.submit)
-
-		# Then made delivery note to remove the serial nos from stock
-		dn = create_delivery_note(item_code=item.name, qty=2, rate=1500, serial_no="\n".join(serial_nos))
-		dn.load_from_db()
-		self.assertEquals(get_serial_nos(dn.items[0].serial_no), serial_nos)
-
-		posting_date = add_days(today(), -3)
-
-		# Try to receive same serial nos again in the same company with backdated.
-		pr1 = make_purchase_receipt(
-			item_code=item.name,
-			qty=2,
-			rate=500,
-			posting_date=posting_date,
-			serial_no="\n".join(serial_nos),
-			do_not_submit=True,
-		)
-
-		self.assertRaises(SerialNoExistsInFutureTransaction, pr1.submit)
-
-		# Try to receive same serial nos with different company with backdated.
-		pr2 = make_purchase_receipt(
-			item_code=item.name,
-			qty=2,
-			rate=500,
-			posting_date=posting_date,
-			serial_no="\n".join(serial_nos),
-			company="_Test Company 1",
-			do_not_submit=True,
-			warehouse="Stores - _TC1",
-		)
-
-		self.assertRaises(SerialNoExistsInFutureTransaction, pr2.submit)
-
-		# Receive the same serial nos after the delivery note posting date and time
-		make_purchase_receipt(item_code=item.name, qty=2, rate=500, serial_no="\n".join(serial_nos))
-
-		# Raise the error for backdated deliver note entry cancel
-		self.assertRaises(SerialNoExistsInFutureTransaction, dn.cancel)
-
 	def test_purchase_receipt_gl_entry(self):
 		pr = make_purchase_receipt(
 			company="_Test Company with perpetual inventory",

erpnext/stock/doctype/stock_reconciliation/stock_reconciliation.py

@@ -634,12 +634,26 @@ class StockReconciliation(StockController):
 			if voucher_detail_no != row.name:
 				continue
 
+			if row.serial_no:
+				item_dict = get_stock_balance_for(
+					row.item_code,
+					row.warehouse,
+					self.posting_date,
+					self.posting_time,
+					voucher_no=self.name,
+				)
+
+				current_qty = item_dict.get("qty")
+				row.current_serial_no = item_dict.get("serial_nos")
+				row.current_valuation_rate = item_dict.get("rate")
+			else:
 				current_qty = get_batch_qty_for_stock_reco(
 					row.item_code, row.warehouse, row.batch_no, self.posting_date, self.posting_time, self.name
 				)
 
 			precesion = row.precision("current_qty")
 			if flt(current_qty, precesion) != flt(row.current_qty, precesion):
+				if not row.serial_no:
 					val_rate = get_valuation_rate(
 						row.item_code,
 						row.warehouse,
@@ -650,14 +664,18 @@ class StockReconciliation(StockController):
 					)
 
 					row.current_valuation_rate = val_rate
+
 				row.current_qty = current_qty
-				row.db_set(
+				values_to_update = {
-					{
 					"current_qty": row.current_qty,
 					"current_valuation_rate": row.current_valuation_rate,
 					"current_amount": flt(row.current_qty * row.current_valuation_rate),
 				}
-				)
+
+				if row.current_serial_no:
+					values_to_update["current_serial_no"] = row.current_serial_no
+
+				row.db_set(values_to_update)
 
 			if (
 				add_new_sle
@@ -880,6 +898,7 @@ def get_stock_balance_for(
 	batch_no: Optional[str] = None,
 	with_valuation_rate: bool = True,
 	inventory_dimensions_dict=None,
+	voucher_no=None,
 ):
 	frappe.has_permission("Stock Reconciliation", "write", throw=True)
 
@@ -910,6 +929,7 @@ def get_stock_balance_for(
 		with_serial_no=has_serial_no,
 		inventory_dimensions_dict=inventory_dimensions_dict,
 		batch_no=batch_no,
+		voucher_no=voucher_no,
 	)
 
 	if has_serial_no:

erpnext/stock/doctype/stock_reconciliation/test_stock_reconciliation.py

@@ -1055,6 +1055,74 @@ class TestStockReconciliation(FrappeTestCase, StockTestMixin):
 		self.assertEqual(sr.items[0].current_qty, se2.items[0].qty)
 		self.assertEqual(len(sr.items[0].current_serial_no.split("\n")), sr.items[0].current_qty)
 
+	def test_backdated_purchase_receipt_with_stock_reco(self):
+		item_code = self.make_item(
+			properties={
+				"is_stock_item": 1,
+				"has_serial_no": 1,
+				"serial_no_series": "TEST-SERIAL-.###",
+			}
+		).name
+
+		warehouse = "_Test Warehouse - _TC"
+
+		# Step - 1: Create a Backdated Purchase Receipt
+
+		pr1 = make_purchase_receipt(
+			item_code=item_code, warehouse=warehouse, qty=10, rate=100, posting_date=add_days(nowdate(), -3)
+		)
+		pr1.reload()
+
+		serial_nos = sorted(get_serial_nos(pr1.items[0].serial_no))[:5]
+
+		# Step - 2: Create a Stock Reconciliation
+		sr1 = create_stock_reconciliation(
+			item_code=item_code,
+			warehouse=warehouse,
+			qty=5,
+			serial_no="\n".join(serial_nos),
+		)
+
+		data = frappe.get_all(
+			"Stock Ledger Entry",
+			fields=["serial_no", "actual_qty", "stock_value_difference"],
+			filters={"voucher_no": sr1.name, "is_cancelled": 0},
+			order_by="creation",
+		)
+
+		for d in data:
+			if d.actual_qty < 0:
+				self.assertEqual(d.actual_qty, -10.0)
+				self.assertAlmostEqual(d.stock_value_difference, -1000.0)
+			else:
+				self.assertEqual(d.actual_qty, 5.0)
+				self.assertAlmostEqual(d.stock_value_difference, 500.0)
+
+		# Step - 3: Create a Purchase Receipt before the first Purchase Receipt
+		make_purchase_receipt(
+			item_code=item_code, warehouse=warehouse, qty=10, rate=200, posting_date=add_days(nowdate(), -5)
+		)
+
+		data = frappe.get_all(
+			"Stock Ledger Entry",
+			fields=["serial_no", "actual_qty", "stock_value_difference"],
+			filters={"voucher_no": sr1.name, "is_cancelled": 0},
+			order_by="creation",
+		)
+
+		for d in data:
+			if d.actual_qty < 0:
+				self.assertEqual(d.actual_qty, -20.0)
+				self.assertAlmostEqual(d.stock_value_difference, -3000.0)
+			else:
+				self.assertEqual(d.actual_qty, 5.0)
+				self.assertAlmostEqual(d.stock_value_difference, 500.0)
+
+		active_serial_no = frappe.get_all(
+			"Serial No", filters={"status": "Active", "item_code": item_code}
+		)
+		self.assertEqual(len(active_serial_no), 5)
+
 
 def create_batch_item_with_batch(item_name, batch_id):
 	batch_item_doc = create_item(item_name, is_stock_item=1)

erpnext/stock/stock_ledger.py

@@ -1,7 +1,6 @@
 # Copyright (c) 2022, Frappe Technologies Pvt. Ltd. and Contributors
 # License: GNU General Public License v3. See license.txt
 
-import copy
 import json
 from typing import Optional, Set, Tuple
 
@@ -27,10 +26,6 @@ class NegativeStockError(frappe.ValidationError):
 	pass
 
 
-class SerialNoExistsInFutureTransaction(frappe.ValidationError):
-	pass
-
-
 def make_sl_entries(sl_entries, allow_negative_stock=False, via_landed_cost_voucher=False):
 	"""Create SL entries from SL entry dicts
 
@@ -54,9 +49,6 @@ def make_sl_entries(sl_entries, allow_negative_stock=False, via_landed_cost_vouc
 		future_sle_exists(args, sl_entries)
 
 		for sle in sl_entries:
-			if sle.serial_no and not via_landed_cost_voucher:
-				validate_serial_no(sle)
-
 			if cancel:
 				sle["actual_qty"] = -flt(sle.get("actual_qty"))
 
@@ -133,35 +125,6 @@ def get_args_for_future_sle(row):
 	)
 
 
-def validate_serial_no(sle):
-	from erpnext.stock.doctype.serial_no.serial_no import get_serial_nos
-
-	for sn in get_serial_nos(sle.serial_no):
-		args = copy.deepcopy(sle)
-		args.serial_no = sn
-		args.warehouse = ""
-
-		vouchers = []
-		for row in get_stock_ledger_entries(args, ">"):
-			voucher_type = frappe.bold(row.voucher_type)
-			voucher_no = frappe.bold(get_link_to_form(row.voucher_type, row.voucher_no))
-			vouchers.append(f"{voucher_type} {voucher_no}")
-
-		if vouchers:
-			serial_no = frappe.bold(sn)
-			msg = (
-				f"""The serial no {serial_no} has been used in the future transactions so you need to cancel them first.
-				The list of the transactions are as below."""
-				+ "<br><br><ul><li>"
-			)
-
-			msg += "</li><li>".join(vouchers)
-			msg += "</li></ul>"
-
-			title = "Cannot Submit" if not sle.get("is_cancelled") else "Cannot Cancel"
-			frappe.throw(_(msg), title=_(title), exc=SerialNoExistsInFutureTransaction)
-
-
 def validate_cancellation(args):
 	if args[0].get("is_cancelled"):
 		repost_entry = frappe.db.get_value(
@@ -573,7 +536,12 @@ class update_entries_after(object):
 		if not self.args.get("sle_id"):
 			self.get_dynamic_incoming_outgoing_rate(sle)
 
-		if sle.voucher_type == "Stock Reconciliation" and sle.batch_no and sle.voucher_detail_no:
+		if (
+			sle.voucher_type == "Stock Reconciliation"
+			and not self.args.get("sle_id")
+			and sle.voucher_detail_no
+			and (sle.batch_no or sle.serial_no)
+		):
 			self.reset_actual_qty_for_stock_reco(sle)
 
 		if (
@@ -651,11 +619,52 @@ class update_entries_after(object):
 		doc.recalculate_current_qty(sle.voucher_detail_no, sle.creation, sle.actual_qty >= 0)
 
 		if sle.actual_qty < 0:
-			sle.actual_qty = (
+			stock_reco_details = frappe.db.get_value(
-				flt(frappe.db.get_value("Stock Reconciliation Item", sle.voucher_detail_no, "current_qty"))
+				"Stock Reconciliation Item",
-				* -1
+				sle.voucher_detail_no,
+				["current_qty", "current_serial_no as sn_no"],
+				as_dict=True,
 			)
 
+			sle.actual_qty = flt(stock_reco_details.current_qty) * -1
+
+			if stock_reco_details.sn_no:
+				sle.serial_no = stock_reco_details.sn_no
+				sle.qty_after_transaction = 0.0
+
+		if sle.serial_no:
+			self.update_serial_no_status(sle)
+
+	def update_serial_no_status(self, sle):
+		from erpnext.stock.doctype.serial_no.serial_no import get_serial_nos
+
+		serial_nos = get_serial_nos(sle.serial_no)
+		warehouse = None
+		status = "Delivered"
+		if sle.actual_qty > 0:
+			warehouse = sle.warehouse
+			status = "Active"
+
+		sn_table = frappe.qb.DocType("Serial No")
+
+		query = (
+			frappe.qb.update(sn_table)
+			.set(sn_table.warehouse, warehouse)
+			.set(sn_table.status, status)
+			.where(sn_table.name.isin(serial_nos))
+		)
+
+		if sle.actual_qty > 0:
+			query = query.set(sn_table.purchase_document_type, sle.voucher_type)
+			query = query.set(sn_table.purchase_document_no, sle.voucher_no)
+			query = query.set(sn_table.delivery_document_type, None)
+			query = query.set(sn_table.delivery_document_no, None)
+		else:
+			query = query.set(sn_table.delivery_document_type, sle.voucher_type)
+			query = query.set(sn_table.delivery_document_no, sle.voucher_no)
+
+		query.run()
+
 	def validate_negative_stock(self, sle):
 		"""
 		validate negative stock for entries current datetime onwards
@@ -1282,6 +1291,9 @@ def get_stock_ledger_entries(
 	if operator in (">", "<=") and previous_sle.get("name"):
 		conditions += " and name!=%(name)s"
 
+	if operator in (">", "<=") and previous_sle.get("voucher_no"):
+		conditions += " and voucher_no!=%(voucher_no)s"
+
 	if extra_cond:
 		conditions += f"{extra_cond}"
 

erpnext/stock/utils.py

@@ -96,6 +96,7 @@ def get_stock_balance(
 	with_serial_no=False,
 	inventory_dimensions_dict=None,
 	batch_no=None,
+	voucher_no=None,
 ):
 	"""Returns stock balance quantity at given warehouse on given posting date or current date.
 
@@ -115,6 +116,9 @@ def get_stock_balance(
 		"posting_time": posting_time,
 	}
 
+	if voucher_no:
+		args["voucher_no"] = voucher_no
+
 	extra_cond = ""
 	if inventory_dimensions_dict:
 		for field, value in inventory_dimensions_dict.items():