Added check for reference uniqueness in checking routine.

diff --git a/sales/sales_order_entry.php b/sales/sales_order_entry.php
index 6ca955d40ae9c7b0d38b10b3f81a793125338da7..625ce897872f9ef170535174ae3a152758106d98 100644 (file)
--- a/sales/sales_order_entry.php
+++ b/sales/sales_order_entry.php
@@ -395,6 +395,12 @@ function can_process() {
                set_focus('ref');
                return false;
        }
+       if ($_SESSION['Items']->trans_no==0 && !is_new_reference($_POST['ref'], 
+               $_SESSION['Items']->trans_type)) {
+               display_error(_("The entered reference is already in use."));
+               set_focus('ref');
+               return false;
+       }
        return true;
 }