We can also recover through the following steps:

Go to system administrator responsibility > Security > Responsibility > Define > Give the particular responsibility name, query on it and then see the effective dates to field. If any date is there then that repsonsibility will expire on that date and if it is null then it will not expire on any date.

Cheers!

Nitin

Workflow Directory Services User/Role Validation

Here is the API script which add the System Administrator responsibility through which you add the other responsibility.

DECLARE
CURSOR c1_cur IS SELECT u.user_name
          ,u.user_id,u.end_date,u.start_date,u.description
   FROM   fnd_user u
   WHERE  u.user_name IN ('subbarab')
   AND    (u.end_date IS NULL OR u.end_date = TO_DATE('31-dec-4712','dd-mon-yyyy'))
   ORDER  BY u.user_name;

    BEGIN
    FOR c1 IN c1_cur LOOP
     BEGIN
       fnd_user_pkg.addresp(username       => c1.user_name --varchar2,
                           ,resp_app       => 'SYSADMIN' --varchar2,
                           ,resp_key       => 'SYSTEM_ADMINISTRATOR' --varchar2,
                           ,security_group => 'STANDARD' --varchar2,
                           ,description    => c1.description --varchar2,
                           ,start_date     => sysdate --date,
                           ,end_date       => c1.end_date --date
             );
       dbms_output.put_line('Inserted '||c1.user_name);
       EXCEPTION
       WHEN OTHERS THEN
       dbms_output.put_line('ERROR '||c1.user_name|| SQLERRM);
      END;
     END LOOP;
     COMMIT;
    END;
/