diff --git a/routes/web.php b/routes/web.php
index 3b20cad2..b6d53dcd 100644
--- a/routes/web.php
+++ b/routes/web.php
@@ -19,7 +19,7 @@ Route::post('password/reset', 'Auth\ResetPasswordController@postReset')->name('p
 
 Route::get('/po-approval', function(){
     $approvedInvoices = InvoiceStatuses::where('status', 'approve')->distinct()->get(['invoice_id'])->pluck('invoice_id');
-    $invoices = \App\Invoice::whereNotIn('id', $approvedInvoices)->get();
+    $invoices = \App\Invoice::whereNotIn('id', $approvedInvoices)->whereNotNull('po_number')->get();
     echo "<h1>Total PO Pending Approval:<b>".count($invoices)."</b></h1>";
     foreach ($invoices as $invoice){
         echo "<a target='_blank' href='https://exchange.cief-malaysia.com/booking/".$invoice->booking->id."/upload-invoice'>".$invoice->booking->id."</a><br>";