The engine will save the state of an orchestration in the following circumstances:

☛ Send Shape (after a message is sent)

☛ Start Orchestration Shape

☛ Suspend Shape

☛ End of a Transactional Scope (atomic or long-running)

☛ An Orchestration Debugger breakpoint is hit

☛ Orchestration Engine determines that the instance needs to be dehydrated

☛ When the Orchestration Engine is shut down; through the controlled shutdown of the host or abnormal circumstances. The engine tries to persist but if that fails, the Orchestration instance will resume from the last successful persistence point.