fix: include payment against PO in AR/AP report
diff --git a/erpnext/accounts/report/accounts_receivable/accounts_receivable.py b/erpnext/accounts/report/accounts_receivable/accounts_receivable.py
index e937edb..eb2959e 100755
--- a/erpnext/accounts/report/accounts_receivable/accounts_receivable.py
+++ b/erpnext/accounts/report/accounts_receivable/accounts_receivable.py
@@ -178,6 +178,11 @@
 
 		key = (ple.against_voucher_type, ple.against_voucher_no, ple.party)
 		row = self.voucher_balance.get(key)
+
+		if not row:
+			# no invoice, this is an invoice / stand-alone payment / credit note
+			row = self.voucher_balance.get((ple.voucher_type, ple.voucher_no, ple.party))
+
 		return row
 
 	def update_voucher_balance(self, ple):