Function shipping

You code a program to access resources in a remote system in much the same way as if they were on the local system.

You can use:
DL/I calls (EXEC DLI commands)
to access data associated with a remote CICS® system.
File control commands
to access files on remote systems. Note that requests which contain the TOKEN keyword cannot be function-shipped.
Temporary storage commands
to access data from temporary storage queues on remote systems.
Transient data commands
to access transient data queues on remote systems.

Three additional exception conditions can occur with remote resources. They occur if the remote system is unavailable (SYSIDERR), if a request is invalid (ISCINVREQ), or if the mirror transaction abends (AIPM abend for IPIC, ATNI for ISC connections, and AZI6 for MRO).