Update rent_payment.py

odex25_realstate/property_management/models/rent_payment.py

@@ -107,6 +107,7 @@ class RentPayment(models.Model):
     def _prepare_invoice_values(self, payment, amount):
         
         self.renter_id.property_account_receivable_id = payment.contract_id.debit_account_id.id
+        unit_name = self.unit_ids[0].name if self.unit_ids else ''  # Check if unit_ids is not empty
         line_invoice=[]
         line_journal = []