No data can be passed to a TIBCO Object Service Broker VTAM LU2 session other than through arguments to the RULE parameter. It is forbidden to return data from the session.
Sessions running in the Native Execution Environment can invoke external routines using OS linkage defined in the ROUTINES and ARGUMENTS tables. Depending on the use, external routines can be accessed through TIBCO Object Service Broker VTAM LU2 sessions, TIBCO Object Service Broker IMS TM sessions, or peer servers. Refer to
Chapter 10, Accessing External Routines for more information.