The Integration Service stores messages or message IDs in a recovery file for real-time sessions that are enabled for recovery and include the following source and target types:
JMS source with non-relational, non-JMS, or non-WebSphere MQ targets
WebSphere MQ source with non-relational, non-JMS, or non-WebSphere MQ targets
SAP ECC source and all targets
webMethods source and all targets
TIBCO source and all targets
The Integration Service temporarily stores messages or message IDs in a local recovery file that you configure in the session properties. During recovery, the Integration Service processes the messages in this recovery file to ensure that data is not lost.