Its written in documentation, that
one strategy to deal with OptimisticLockingExceptions at a parallel gateway is to configure the gateway to use asynchronous continuations. So i configured it like on this image (T - async):
But now on OptimisticLockingException my “UpdateNotification” task begin do retrying by itself, though there is a transaction boundary between it and Parallel gateway.
Please, explain, where i must to set async, if Notification service must be called succesfully only once.