APP-FND-02704: Unable to alter user APPS to change password

Error while changing the APPS password using FNDCPASS after integrating Database vault with E-Business suite

FNDCPASS apps/apps 0 Y system/manager SYSTEM APPLSYS welcome123

[appltest@TEST ~]$ cat L3312766.log
+---------------------------------------------------------------------------+
Application Object Library: Version : 12.0.0
Copyright (c) 1979, 1999, Oracle Corporation. All rights reserved.
 module:
+---------------------------------------------------------------------------+
Current system time is 01-MAR-2014 09:58:07
+---------------------------------------------------------------------------+
Working...
APP-FND-02704: Unable to alter user APPS to change password.
+---------------------------------------------------------------------------+
Concurrent request completed
Current system time is 01-MAR-2014 09:58:35
+---------------------------------------------------------------------------+

Solution:
Use DBVACCTMGR instead of system

FNDCPASS apps/apps 0 Y DBVACCTMGR/DBV123 SYSTEM APPLSYS welcome123