Error: ORA-28000: the account is locked

ORA-28000
Error: ORA-28000: the account is locked

Cause: The user has entered wrong password consequently for maximum number of times specified by the user’s profile parameter FAILED_LOGIN_ATTEMPTS, or the database administrator has locked the account.

Action: Wait for PASSWORD_LOCK_TIME or contact the database administrator

To unlock an user manually:

alter user <username> account unlock;

to change his password:

alter user <username> identified by new_password;