Optional Serial Number in Delivery Notes for Warranty Tracking Only

hiimkhaled · October 26, 2024, 2:49pm

Hello Community,

I’d like to use serial numbers in ERPNext just for warranty and after-sales tracking—not for inventory management. Ideally, serials should be optional in Delivery Notes: if a serial is entered, it’s tracked for warranty, but if not, delivery proceeds without error.

Currently, I get the error “The Item {self.item_code} does not have Serial No or Batch No” when no serial is provided. I’ve found this check in serial_and_batch_bundle.py.

github.com

frappe/erpnext/blob/develop/erpnext/stock/doctype/serial_and_batch_bundle/serial_and_batch_bundle.py#L597


      
          			return frappe.get_cached_value(self.voucher_type, self.voucher_no, "is_return")
          		elif self.voucher_type in ["Sales Invoice", "Delivery Note"]:
          			return not frappe.get_cached_value(self.voucher_type, self.voucher_no, "is_return")
          		elif self.voucher_type == "Stock Entry":
          			return frappe.get_cached_value(self.voucher_type, self.voucher_no, "purpose") in [
          				"Material Receipt"
          			]
          
          	def validate_serial_and_batch_no(self):
          		if self.item_code and not self.has_serial_no and not self.has_batch_no:
          			msg = f"The Item {self.item_code} does not have Serial No or Batch No"
          			frappe.throw(_(msg))
          
          		serial_nos = []
          		batch_nos = []
          
          		serial_batches = {}
          		for row in self.entries:
          			if not row.qty and row.batch_no and not row.serial_no:
          				frappe.throw(
          					_("At row {0}: Qty is mandatory for the batch {1}").format(

I’m considering two options:

Custom Script: Toggle has_serial_no only when a serial is needed, e.g., for warranty.
Override in Custom App: Override the validate_serial_and_batch_no function in my app, making serials optional in Delivery Notes.

Are these options safe regarding inventory transactions or system stability? Any advice or alternative ideas?

Thanks!