Index: branches/version-2_5-dev/data/class/helper/SC_Helper_CSV.php
===================================================================
--- branches/version-2_5-dev/data/class/helper/SC_Helper_CSV.php	(revision 20562)
+++ branches/version-2_5-dev/data/class/helper/SC_Helper_CSV.php	(revision 20686)
@@ -133,5 +133,5 @@
                     and $val['rw_flg'] == CSV_COLUMN_RW_FLG_READ_WRITE
                     and $val['error_check_types'] != ""
-                    and stripos($val['error_check_types'], "EXIST_CHECK") !== FALSE) {
+                    and strpos(strtoupper($val['error_check_types']), "EXIST_CHECK") !== FALSE) {
                 //必須フィールド
                 $result = false;