mmm send message which could not be sent cannot be discarded because it is related to uncommitted transaction. system waits for transaction to be committed.
logical terminal name of sending destination=aa...aa

mmm: MCF identifier

aa...aa: Logical terminal name of the sending destination

S: Waits for the relevant transaction to be committed. Once the transaction has been committed, discards the relevant send message which could not be sent and continues processing. If the limit time for a transaction and UAP elapses, terminates the commit monitoring for the relevant send message to terminate the relevant UAP abnormally and perform rollback, then continues processing.

O: Contact the OpenTP1 administrator.

Countermeasure: Wait for the relevant transaction to be committed or terminate OpenTP1 forcibly.