Send-only protocol with serial delivery protocol

When the send-only protocol with the serial delivery option is specified, IMS Connect ensures that the order in which it submits send-only transactions to OTMA is in fact the order in which IMS receives the transactions.

You can select the send-only protocol with the serial delivery option by specifying X'10' for IRM_F3_ORDER in the IRM_F3 field of the HWSSMPL0 and HWSSMPL1 user message exit IRM format.

The send-only protocol with the serial delivery option and the send-only protocol with the acknowledgment option are mutually exclusive. If both are specified, the send only with acknowledgment protocol takes effect.

The send-only protocol with the serial delivery option is not supported by HWSJAVA0.

The following requirements apply to the send-only protocol when the serial delivery option is used.

• All transactions that use the send-only protocol with the serial delivery option must be defined as SCHDTYP=SERIAL. If the transactions are defined as SCHDTYP=PARALLEL, OTMA cannot guarantee that IMS will process them serially.
• Send-only transactions that must be delivered serially relative to one another must use the same tmember and tpipe connection, including transactions of the same transaction type that must be delivered serially with respect to all other transactions of the same type. If a transaction is sent on multiple tmember and tpipe connections, OTMA cannot guarantee that IMS will process them serially.