Add Sysadmin responsibility in Backend R12

-- Check the attached responsiblity

Select b.user_name, c.responsibility_name, a.START_DATE, a.END_DATE
from fnd_user_resp_groups_direct a, fnd_user b, fnd_responsibility_tl c
where a.user_id = b.user_id
and a.responsibility_id = c.responsibility_id
and b.user_name='USERNAME'

add sysadmin responsibility in backend

BEGIN
  fnd_user_pkg.addresp('user_name',
                       'SYSADMIN',
                       'SYSTEM_ADMINISTRATOR',
                       'STANDARD',
                       'Add Responsibility to USER using pl/sql',
                       SYSDATE,
                       SYSDATE + 100);
  COMMIT;
  DBMS_OUTPUT.put_line('Responsibility Added Successfully');
EXCEPTION
  WHEN OTHERS THEN
    DBMS_OUTPUT.put_line(' Responsibility is not added due to ' || SQLCODE ||
                         SUBSTR(SQLERRM, 1, 100));
    ROLLBACK;
END;