R12 Sysadmin account got locked after N number of invalid attempts
Run this query and make sure the account got locked
SELECT DECODE (encrypted_user_password
, 'INVALID', 'Account locked'
, 'Account not locked')
FROM fnd_user
WHERE user_name = '&username';
We can't unlock the account as similar to dba_users account. Please use below command to reset the password.
FNDCPASS apps/XXXXXXX 0 Y system/XXXXXX USER SYSADMIN XXXXXXXX