From 18ce16fd14342f897111c66b40295af4d351ef58 Mon Sep 17 00:00:00 2001
From: Joe Hunt <joe.hunt.consulting@gmail.com>
Date: Thu, 24 Jan 2013 13:53:06 +0100
Subject: [PATCH] In case of document reference already in use, FA suggest the
 next number (if possible) ready to save again.

---
 sales/sales_order_entry.php | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/sales/sales_order_entry.php b/sales/sales_order_entry.php
index 23410132..98cf5411 100644
--- a/sales/sales_order_entry.php
+++ b/sales/sales_order_entry.php
@@ -439,6 +439,13 @@ if (isset($_POST['ProcessOrder']) && can_process()) {
 	if ($ret == -1)
 	{
 		display_error(_("The entered reference is already in use."));
+		$ref = get_next_reference($_SESSION['Items']->trans_type);
+		if ($ref != $_SESSION['Items']->reference)
+		{
+			display_error(_("The reference number field has been increased. Please save the document again."));
+			$_POST['ref'] = $_SESSION['Items']->reference = $ref;
+			$Ajax->activate('ref');
+		}	
 		set_focus('ref');
 	}
 	else
-- 
2.30.2