If you really need to go ahead with the split, think about moving from a purely technical view of the process (e.g., a database transaction) and actually create a concrete concept to represent the transaction itself. This gives you a handle, or a hook, on which to run other operations like compensating transactions, and a way to monitor and manage these more complex concepts in your system. For example, you might create the idea of an “in-process-order” that gives you a natural place to focus all logic around processing the order end to end (and dealing with exceptions).
