If the coordinator or any participants experience a failure, automatic in-doubt resolution will occur once the communication between the coordinator and the participants is reestablished.
The coordinator automatically resolves in-doubt units of recovery that are listed in both the CICS transient journal and in the participant’s log, without any manual intervention. However, if a participant has additional in-doubt units of recovery in its log that are not listed in the CICS log, it will not resolve them until it receives instructions to do so from the coordinator or another authorized source (see Manual In-Doubt Resolution).