...
- Message File - the name of the JSON-based session message file; if not qualified, the pathlist is used to find the .json message file
- Message Id - the ID of the message to retrieve from the message file
- Message Replacement Data (optional) - data field or a data structure that contains all the replacement values required by the message; the length and format of the field depend on the substitution variables described in the message; for example, for a message with 2 substitution variables defined as *CHAR 10 and *CHAR 5, the replacement data should be a 15 byte field
- Program Message Queue (optional) - the name of a message queue; if not specified, the current program name is used
...