A region flows users IDs to a remote system if the OutboundUserIds attribute of the local CD entry for the remote system is set to sent, sent_maybe_with_password, or sent_only_with_password. If the remote system to which you are sending cannot receive inbound user IDs, set the OutboundUserIds attribute to not_sent.
Table 1 shows which user ID is flowed when a local task issues an intersystem request to a remote system.
| Characteristics of the local task | User identifier sent by CICS® to the remote region |
|---|---|
| Task with associated terminal; user signed on | Terminal user identifier. |
| Task with associated terminal; no user signed on | The region's DefaultUserId. |
| Task with no associated terminal started by interval control EXEC CICS START | User identifier for the task that issued the EXEC CICS START command. |
| Task with no associated terminal, triggered by a transient data queue | User Identifier whose TDQ write triggered the task. |
| CICS system task | Local Sysid of the region. |
| Program started by Distributed Program Link (DPL) | The user ID is the one associated
with the task. This depends on the CD RemoteSysSecurity and LinkUserId settings
for the connection that started the task. For example: RemoteSysSecurity=local: either link user ID or default user ID. RemoteSysSecurity=trusted orverify: either flowed user ID or default user ID. |
| Back-end Program started by Distributed Transaction Processing (DTP). | The user ID is the one that is associated
with the task. This depends on the CD RemoteSysSecurity and LinkUserId settings
for the connection that started the task. For example: RemoteSysSecurity=local: either link user ID or default user ID. RemoteSysSecurity=trusted or verify: either flowed user ID or default user ID. |
By default, CICS never flows passwords with these user IDs. This is because all local user IDs that are running transactions in a region have had their passwords checked. Therefore, set up remote systems in the SNA definitions to accept user IDs that are flowed by a region as already_verified See Receiving user IDs from SNA-connected systems for more information.
If you want your CICS region to send passwords, see Setting up a CICS region to flow passwords.