Send-only with error protocol

Use the send-only with error (SNDONLYE) protocol to receive responses for errors that occur in IMS Connect.

When the send-only protocol is used, IMS Connect (ICON) does not return responses to the client for any error that occurs in IMS or IMS Connect. The client does not wait for any response from IMS Connect.

If you use the send-only with error protocol, IMS Connect returns an error response to the client and closes the socket connection if it detects an error during IMS Connect inbound transaction message processing. If IMS Connect detects no error, no response is returned to the client.

IMS Connect does not send any response for errors in the IMS system back to the client with the send-only with error protocol.

If you specify the send-only with error protocol to an ICON that does not support this protocol, the ICON ignores the unsupported send-only with error option and treats the request as a send/receive protocol.

It is recommended to use a separate thread to receive error responses so the main thread could continue to send transactions to IMS Connect and maintain high volume input.

You can enable the send-only with error protocol by specifying the IRM_F4_SNDONLYE C’J’ bit in the IRM_F4 field for messages that use HWSSMPL0 and HWSSMPL1 user message exit IRM format.

The send-only with error protocol option and the send-only protocol with serial delivery option can be used together.