diff --git a/modules/org.openbravo.advpaymentmngt/src/org/openbravo/advpaymentmngt/process/FIN_PaymentProcess.java b/modules/org.openbravo.advpaymentmngt/src/org/openbravo/advpaymentmngt/process/FIN_PaymentProcess.java
--- a/modules/org.openbravo.advpaymentmngt/src/org/openbravo/advpaymentmngt/process/FIN_PaymentProcess.java
+++ b/modules/org.openbravo.advpaymentmngt/src/org/openbravo/advpaymentmngt/process/FIN_PaymentProcess.java
@@ -839,6 +839,8 @@
                         .getInvoicePaymentSchedule() != null ? paymentScheduleDetail
                         .getInvoicePaymentSchedule().getInvoice() : null;
                     paidAmount = BigDecimal.ZERO;
+                    invoiceForConversion.setFinalSettlementDate(null);
+                    invoiceForConversion.setDaysSalesOutstanding(null);
                     if (!(businessPartner == null)) {
                       final Currency fromCurrency = payment.getCurrency();
                       // At this point the BP must have a currency, because it is set when