Userid of a non-terminal started transaction

The USERID option of the START command (or the terminal user if no TERMID or USERID is included in the START command) determines the userid for a non-terminal started transaction. Without the USERID option, the non-terminal started transaction has the same userid as the transaction that executed the START command. If the USERID option is specified on the START command, the specified userid is used instead.

When an START command is executed without the TERMID option, CICS performs a surrogate user check to ensure that the transaction is authorized for the userid to be used by the non-terminal started transaction. For information about the link authorization of surrogate users, see Intercommunication link security. For information about EDF authorization of surrogate users, see Conditional access processing.