Dynamic Business Orchestrator stores the information necessary to run a step in the cache until the step completes successfully. The StepInput cache is used for automatic disaster recovery. The StepInput cache exists for as long as the process step is being executed and is not related to the execution of the whole process instance. A running step is kept in the cache in case of unforseen events, for example power failure, and the step data is used for disaster recovery after the system becomes available.

The exceptions that may occur during the process execution in Dynamic Business Orchestrator fall in one of the following categories: