diff --git a/erpnext/accounts/doctype/sales_invoice/sales_invoice.py b/erpnext/accounts/doctype/sales_invoice/sales_invoice.py
index cb501c1ffbc..c9a36e4aece 100644
--- a/erpnext/accounts/doctype/sales_invoice/sales_invoice.py
+++ b/erpnext/accounts/doctype/sales_invoice/sales_invoice.py
@@ -39,7 +39,7 @@ from erpnext.controllers.selling_controller import SellingController
 from erpnext.projects.doctype.timesheet.timesheet import get_projectwise_timesheet_data
 from erpnext.setup.doctype.company.company import update_company_current_month_sales
 from erpnext.stock.doctype.delivery_note.delivery_note import update_billed_amount_based_on_so
-from erpnext.stock.doctype.serial_no.serial_no import get_delivery_note_serial_no, get_serial_nos
+from erpnext.stock.doctype.serial_no.serial_no import get_serial_nos
 
 form_grid_templates = {"items": "templates/form_grid/item_grid.html"}
 
@@ -321,9 +321,7 @@ class SalesInvoice(SellingController):
 		self.set_against_income_account()
 		self.validate_time_sheets_are_submitted()
 		self.validate_multiple_billing("Delivery Note", "dn_detail", "amount")
-		if not self.is_return:
-			self.validate_serial_numbers()
-		else:
+		if self.is_return:
 			self.timesheets = []
 		self.update_packing_list()
 		self.set_billing_hours_and_amount()
@@ -1706,53 +1704,6 @@ class SalesInvoice(SellingController):
 		self.set("write_off_amount", reference_doc.get("write_off_amount"))
 		self.due_date = None
 
-	def validate_serial_numbers(self):
-		"""
-		validate serial number agains Delivery Note and Sales Invoice
-		"""
-		self.set_serial_no_against_delivery_note()
-		self.validate_serial_against_delivery_note()
-
-	def set_serial_no_against_delivery_note(self):
-		for item in self.items:
-			if item.serial_no and item.delivery_note and item.qty != len(get_serial_nos(item.serial_no)):
-				item.serial_no = get_delivery_note_serial_no(item.item_code, item.qty, item.delivery_note)
-
-	def validate_serial_against_delivery_note(self):
-		"""
-		validate if the serial numbers in Sales Invoice Items are same as in
-		Delivery Note Item
-		"""
-
-		for item in self.items:
-			if not item.delivery_note or not item.dn_detail:
-				continue
-
-			serial_nos = frappe.db.get_value("Delivery Note Item", item.dn_detail, "serial_no") or ""
-			dn_serial_nos = set(get_serial_nos(serial_nos))
-
-			serial_nos = item.serial_no or ""
-			si_serial_nos = set(get_serial_nos(serial_nos))
-			serial_no_diff = si_serial_nos - dn_serial_nos
-
-			if serial_no_diff:
-				dn_link = frappe.utils.get_link_to_form("Delivery Note", item.delivery_note)
-				serial_no_msg = ", ".join(frappe.bold(d) for d in serial_no_diff)
-
-				msg = _("Row #{0}: The following Serial Nos are not present in Delivery Note {1}:").format(
-					item.idx, dn_link
-				)
-				msg += " " + serial_no_msg
-
-				frappe.throw(msg=msg, title=_("Serial Nos Mismatch"))
-
-			if item.serial_no and cint(item.qty) != len(si_serial_nos):
-				frappe.throw(
-					_("Row #{0}: {1} Serial numbers required for Item {2}. You have provided {3}.").format(
-						item.idx, item.qty, item.item_code, len(si_serial_nos)
-					)
-				)
-
 	def update_project(self):
 		unique_projects = list(set([d.project for d in self.get("items") if d.project]))
 		if self.project and self.project not in unique_projects:
diff --git a/erpnext/stock/doctype/delivery_note/delivery_note.py b/erpnext/stock/doctype/delivery_note/delivery_note.py
index 2b4dad137c2..76e5b4ea972 100644
--- a/erpnext/stock/doctype/delivery_note/delivery_note.py
+++ b/erpnext/stock/doctype/delivery_note/delivery_note.py
@@ -12,7 +12,6 @@ from frappe.utils import cint, flt
 
 from erpnext.controllers.accounts_controller import get_taxes_and_charges, merge_taxes
 from erpnext.controllers.selling_controller import SellingController
-from erpnext.stock.doctype.serial_no.serial_no import get_delivery_note_serial_no
 
 form_grid_templates = {"items": "templates/form_grid/item_grid.html"}
 
@@ -980,11 +979,6 @@ def make_sales_invoice(source_name, target_doc=None, args=None):
 	def update_item(source_doc, target_doc, source_parent):
 		target_doc.qty = to_make_invoice_qty_map[source_doc.name]
 
-		if source_doc.serial_no and source_parent.per_billed > 0 and not source_parent.is_return:
-			target_doc.serial_no = get_delivery_note_serial_no(
-				source_doc.item_code, target_doc.qty, source_parent.name
-			)
-
 	def get_pending_qty(item_row):
 		pending_qty = item_row.qty - invoiced_qty_map.get(item_row.name, 0)
 
diff --git a/erpnext/stock/doctype/serial_no/serial_no.py b/erpnext/stock/doctype/serial_no/serial_no.py
index 4c693d8efec..54f96fb7b10 100644
--- a/erpnext/stock/doctype/serial_no/serial_no.py
+++ b/erpnext/stock/doctype/serial_no/serial_no.py
@@ -169,21 +169,6 @@ def update_maintenance_status():
 		frappe.db.set_value("Serial No", doc.name, "maintenance_status", doc.maintenance_status)
 
 
-def get_delivery_note_serial_no(item_code, qty, delivery_note):
-	serial_nos = ""
-	dn_serial_nos = frappe.db.sql_list(
-		f""" select name from `tabSerial No`
-		where item_code = %(item_code)s and delivery_document_no = %(delivery_note)s
-		and sales_invoice is null limit {cint(qty)}""",
-		{"item_code": item_code, "delivery_note": delivery_note},
-	)
-
-	if dn_serial_nos and len(dn_serial_nos) > 0:
-		serial_nos = "\n".join(dn_serial_nos)
-
-	return serial_nos
-
-
 @frappe.whitelist()
 def auto_fetch_serial_number(
 	qty: int,