You can include a DD statement for CBKLOG in the CICS region JCL or in the CICS BAC batch request utility JCL to allocate the log data set at job step initiation. Alternatively, you can let CICS BAC dynamically allocate the audit log when it is first required, based on the audit log attributes in the CICS region properties record in the region control file. You can define, view, or alter the audit log attributes using the workstation administration client. In the workstation administration client, open the Region Properties window and select the Miscellaneous(1) options tab. The Miscellaneous(1) options tab allows you to direct the audit log to SYSOUT, or to a named data set, and to indicate the types of audit record you want CICS BAC to write to the log. You can also specify the logging attribute using the LOGxxxx parameters of the file maintenance utility (see the UPDATE REGION command on page UPDATE REGION ).