The below errors are observed when running ora_chpwd:
Please enter the SID where SharePlex is installed [OracleSID] : OracleSID
In order to change the password for the SharePlex user account,
we must connect to the database as DBA user.
Enter a DBA user name : SYSTEM
Enter password for the DBA account, which will not echo :
connecting--This may take a few seconds.
(null): can't log into Oracle as SYSTEM,
/ora_chpwd: perhaps SID is not correct