ApplName (MQCHAR28)

The name set by the application to identify the connection to the queue manager. The initial value of the field is MQAN_NONE_ARRAY (blank characters).

This field is ignored if Version is less than MQCNO_VERSION_7, or if the value is set to blanks.

We cannot set this field on z/OS . If you attempt to do so, you receive the MQRC_CNO_ERROR reason code back.