You can change the user ID and password at any time by following these steps.
Set UserId and Password in the CICS_EpiAttributes_t structure on a CICS_EpiAddExTerminal call. Or, use the EPI function CICS_EpiSetSecurity. This call would typically be used to change the terminal security settings if, for example, the user's password had expired.
Set the userid and password parameters when constructing a CclTerminal class object. Or, use the alterSecurity method of the CclTerminal class.
Use the AlterSecurity method of the Terminal COM class. This can only be used for sign-on incapable created terminals.
Set the userid and password parameters when constructing an EPIRequest object via the addTerminal or addTerminalAsync method. Or, use the alterSecurity method of the EPIRequest class.
Create a Terminal object using the default Constructor, then use setUserid and setPassword to set security, or create a Terminal object using the extended Constructor.