diff --git a/erpnext/accounts/doctype/dunning/dunning.py b/erpnext/accounts/doctype/dunning/dunning.py
index 941a91d..0a55ff5 100644
--- a/erpnext/accounts/doctype/dunning/dunning.py
+++ b/erpnext/accounts/doctype/dunning/dunning.py
@@ -84,8 +84,9 @@
 				resolve = True
 				dunning = frappe.get_doc("Dunning", dunning_name)
 				for overdue_payment in dunning.overdue_payments:
-					outstanding = frappe.get_value("Payment Schedule", overdue_payment.payment_schedule, "outstanding")
-					if outstanding >= 0:
+					outstanding_inv = frappe.get_value("Sales Invoice", overdue_payment.sales_invoice, "outstanding_amount")
+					outstanding_ps = frappe.get_value("Payment Schedule", overdue_payment.payment_schedule, "outstanding")
+					if outstanding_ps > 0 and outstanding_inv > 0:
 						resolve = False
 
 				if resolve: