416: INVALID_CICS_RELEASE

A DPL request has been rejected by the target CICS® server region because it doesn't recognize the request.

Explanation

System Action

The DPL call is rejected and the pipe is put into a must close state.

User Response

The most likely reason for this is that the client application program has specified a target CICS server region that does not support the external CICS interface. CICS regions earlier than CICS for MVS/ESA 4.1 do not recognize EXCI call requests. Correct the problem, close and reopen the pipe and then reissue the DPL request.