my $invoices_for_advance_payment = $self->_get_invoices_for_advance_payment($form->{convert_from_ar_ids} || $form->{id});
if (scalar @$invoices_for_advance_payment > 0) {
# reverse booking for invoices for advance payment
my $invoices_for_advance_payment = $self->_get_invoices_for_advance_payment($form->{convert_from_ar_ids} || $form->{id});
if (scalar @$invoices_for_advance_payment > 0) {
# reverse booking for invoices for advance payment