diff --git a/acqui/invoice.pl b/acqui/invoice.pl
index 2c88908086..f822ee4480 100755
--- a/acqui/invoice.pl
+++ b/acqui/invoice.pl
@@ -74,7 +74,7 @@ if ( C4::Context->preference('AcqEnableFiles') ) {
 if ( $op && $op eq 'cud-close' ) {
     output_and_exit( $input, $cookie, $template, 'insufficient_permission' )
         unless $logged_in_patron->has_permission( { acquisition => 'edit_invoices' } );
-    my @invoiceid = $input->multi_param('invoiceid');
+    my @invoiceid = split( ',', $input->param('invoiceid') );
     foreach my $invoiceid ( @invoiceid ) {
         CloseInvoice($invoiceid);
     }
diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/acqui/invoices.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/acqui/invoices.tt
index 6f9901bf71..d2fb83ce06 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/acqui/invoices.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/acqui/invoices.tt
@@ -128,7 +128,7 @@
                                     <a class="btn btn-default" id="open_sel" href="#reopen_selected" data-table="closedresultst" data-op="reopen" data-referer="referer=/cgi-bin/koha/acqui/invoices.pl%3Fop=do_search%26invoicenumber=[% invoicenumber | uri %]%26supplier=[% booksellerid | uri %]%26shipmentdatefrom=[% shipmentdatefrom | $KohaDates %]%26shipmentdateto=[% shipmentdateto | $KohaDates %]%26billingdatefrom=[% billingdatefrom | $KohaDates %]%26billingdateto=[% billingdateto | $KohaDates %]%26isbneanissn=[% isbneanissn | uri %]%26title=[% title | uri %]%26author=[% author | uri %]%26publisher=[% publisher | uri %]%26publicationyear=[% publicationyear | uri %]%26branch=[% branch | uri %]"><i class="fa-solid fa-rotate"></i> Reopen selected invoices</a>
                                 [% ELSE  %]
                                     <a class="btn btn-default merge" id="merge_open" href="#merge_invoices" data-table="openedresultst"><i class="fa fa-compress"></i> Merge selected invoices</a>
-                                    <a class="btn btn-default" id="close_sel" href="#close_selected" data-table="openedresultst" data-op="close" data-referer="referer=/cgi-bin/koha/acqui/invoices.pl%3Fop=do_search%26invoicenumber=[% invoicenumber | uri %]%26supplier=[% booksellerid | uri %]%26shipmentdatefrom=[% shipmentdatefrom | $KohaDates %]%26shipmentdateto=[% shipmentdateto | $KohaDates %]%26billingdatefrom=[% billingdatefrom | $KohaDates %]%26billingdateto=[% billingdateto | $KohaDates %]%26isbneanissn=[% isbneanissn | uri %]%26title=[% title | uri %]%26author=[% author | uri %]%26publisher=[% publisher | uri %]%26publicationyear=[% publicationyear | uri %]%26branch=[% branch | uri %]"><i class="fa fa-times-circle"></i> Close selected invoices</a>
+                                    <a class="submit-form-link btn btn-default" id="close_sel" data-table="openedresultst" data-op="cud-close" data-action="invoice.pl" data-method="post" data-referer="/cgi-bin/koha/acqui/invoices.pl?op=do_search&invoicenumber=[% invoicenumber | html %]&supplier=[% booksellerid | html %]&shipmentdatefrom=[% shipmentdatefrom | $KohaDates %]&shipmentdateto=[% shipmentdateto | $KohaDates %]&billingdatefrom=[% billingdatefrom | $KohaDates %]&billingdateto=[% billingdateto | $KohaDates %]&isbneanissn=[% isbneanissn | html %]&title=[% title | html %]&author=[% author | html %]&publisher=[% publisher | html %]&publicationyear=[% publicationyear | html %]&branch=[% branch | html %]"><i class="fa fa-times-circle"></i> Close selected invoices</a>
                                 [% END # /IF tab == 'closed' %]
                             [% END # /IF CAN_user_acquisition_merge_invoices %]
                         [% END # /BLOCK invoices_table %]
@@ -461,16 +461,14 @@
             });
 
             $('#open_sel,#close_sel').click(function () {
-                var referer = $(this).attr("data-referer");
-                var op = $(this).attr("data-op");
                 var table = $(this).data('table');
-                var invoice_link = "invoice.pl?op="+op;
+                var invoice_ids = "";
                 if ($('#' + table + ' .select-invoice:checked').length) {
                     $('#' + table + ' .select-invoice:checked').each(function () {
                             var row = $(this).parents('tr');
-                            invoice_link = invoice_link + "&amp;invoiceid="+$(row).attr('data-invoiceid');
+                            invoice_ids = invoice_ids + ","+$(row).attr('data-invoiceid');
                     });
-                    window.location.href =invoice_link +"&amp;"+referer;
+                    $(this).attr('data-invoiceid', invoice_ids);
                 } else {
                     alert ("Please select at least one invoice." );
                 }