Event handlers can be triggered zero or more times during the life of a process instance.
An event handler is a catch intermediate event with no incoming flow. Event handlers with no specific trigger type will normally be triggered through a destination-specific API or utility. See the
BPM Developer's Guide for more information.
Select initalizers for the event handler using the Initalizers: selection under Event Handler (see screenshot above). You can select any task, embedded-sub-process or event activity (except those attached to task boundary, or events that are themselves event handlers). This includes activities on event handler outgoing flows.
See Design Considerations for Process Migration" for information on process migration considerations when using event handlers.