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Many sites do not want users to enter passwords when they perform a secured function. If a user ID/password has already been validated, there is no need to enter a password again. That is the premise for CA XCOM Data Transport user ID propagation. A user's signon to CICS using the CESN transaction signifies that a user ID/password combination has been validated.
When the CA XCOM Data Transport CICS interface schedules a file transfer, it passes the CICS sign‑on user ID by default and notifies CA XCOM Data Transport that the password was already validated (by CICS in this case). CA XCOM Data Transport then performs data set security validation on the user ID, but does not validate the password.
This is true of both the local user ID/password and the remote user ID/password fields. The default value for user ID is the user ID that signed onto the terminal, while there is no default for the password fields. If the user enters a user ID other than the CICS logon user ID, then both the CA XCOM Data Transport server and the CA XCOM Data Transport remote partner require the password.
Remember that the CA XCOM Data Transport user ID propagation feature is supported by the mainframe components of CA XCOM Data Transport. Because the CA XCOM Data Transport server's VTAM APPLID must be a mainframe component, the local user ID/password fields can always use user ID propagation. However, unless the partner is a CA XCOM Data Transport mainframe component, you should enter the remote user ID/password combination if the partner performs authorization checking.
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