SQL & PL/SQL

As part of an upgrade, we need to end-date the vast majority of our users.

I've used the fnd_user_pkg.updateuser API to populate the end_date on the fnd_user table.

However, when I've come to test removing the end-date, I can't seem to do it. In the example below, the end_date remains populated.

DECLARE
   CURSOR usercur
   IS
      SELECT fu.user_name
        FROM apps.fnd_user fu
       WHERE user_name = 'TEST_ACCOUNT';
BEGIN

   FOR myuser IN usercur
   LOOP
      fnd_user_pkg.updateuser(
         x_user_name      => myuser.user_name
       , x_owner          => 'CUST'
       , x_end_date       => NULL
      );
   END LOOP;

END;

On the example on this post:
http://apps2fusion.com/forums/viewtopic.php?f=99&t=108

They removed the end-date via:

x_end_date => SYSDATE + 10000);

However, that's not really removing the end date, it's just setting it to a long time in the future.

I wondered if I might be missing something obvious?

Any advice much appreciated.

Thanks