Routing transactions invoked by START commands

To route transactions that are invoked by EXEC CICS® START commands, define a transaction as ROUTABLE(YES) in the requesting region (the region in which the START command is issued).

This method of routing is known as the enhanced method and supersedes the traditional method of routing transactions (see Traditional routing of transactions started by ATI). However, for the following transactions, you must use the traditional method:

Transactions invoked by the trigger-level on a transient data queue
Some transactions that are invoked by EXEC CICS START commands