The Change Job (CHGJOB) command can be used to change the DDMCNV parameter, which controls whether Advanced Program-to-Program Communication (APPC) or iSeries™ Access Family conversations allocated for DDM use are to be kept active or automatically dropped when they are not in use by a job. The new value goes into effect immediately for the specified job.
To display the current value of the DDMCNV job attribute, use the Work with Job (WRKJOB) command.