Deallocating a Half-duplex conversation abnormally

To deallocate a conversation because of an error, application programs can use any of the following macroinstructions:

APPCCMD CONTROL=DEALLOC|DEALLOCQ, QUALIFY=ABNDPROG
APPCCMD CONTROL=DEALLOC|DEALLOCQ, QUALIFY=ABNDSERV
APPCCMD CONTROL=DEALLOC|DEALLOCQ, QUALIFY=ABNDTIME
APPCCMD CONTROL=DEALLOC|DEALLOCQ, QUALIFY=ABNDUSER
APPCCMD CONTROL=REJECT

For details on the syntax and operands for these macroinstructions, refer to the z/OS Communications Server: SNA Programmer's LU 6.2 Reference.

The APPCCMD CONTROL=DEALLOC|DEALLOCQ macroinstructions abnormally end a conversation without ending the session. The APPCCMD CONTROL=DEALLOQ macroinstruction queues a deallocation request if the conversation is in the RECEIVE state and has not yet received data. When the data is received, VTAM® deallocates the conversation. The REJECT macroinstructions end both the conversation and the session.