The ACUFH configuration variable A_DB2_PASSWD should be set to the password assigned to the database account associated with the user name specified by A_DB2_LOGIN. Not all data sources require a password. Those that do may have case requirements. Check your data source documentation to determine if password is case-sensitive.
If the account with the user name in A_DB2_LOGIN has the associated password "CW021535", you would specify:
A_DB2_PASSWD CW021535
in the ACUFH configuration file.
For better security, you can accept a password from the user during program execution; set the A_DB2_PASSWD variable based on the response:
ACCEPT RESPONSE NO-ECHO. SET ENVIRONMENT "A_DB2_PASSWD" TO RESPONSE.
Note: If the user has been set up without a password, this variable need not be set. There is no default value for this variable. If no password is specified, none will be used.