The entire text of this message is an insert. This message is for diagnostic purposes only. It may look different each time it is issued.

The message is issued each time an internal command buffer gets rebuilt. This can be useful when diagnosing command errors. It provides a step-by-step history of how the command text is assembled. In addition, this message is used to trace which TSO macros are being used during the parsing of the RACF® command. These messages are issued only when the RACF subsystem SET command is used to activate the TRACE(IMAGE) option, and a user issues a RACF command that ends in the three characters " -t". This message is sent to the user's TSO terminal or the operator console, depending on where the command was issued.