Depends significantly on the back-end data store, for some our in-house systems we’ve had good experiences with GoldenGate [1] to do a continuous sync between s

Depends significantly on the back-end data store, for some our in-house systems we’ve had good experiences with GoldenGate [1] to do a continuous sync between systems to enable a rollback scenario, and there are equivalent packages available for lots of datastores. Some of the larger finance packages also include export and snapshot functionality but this wont help with maintaining parallel systems. The risk however is evaluating consistency between the systems before doing the rollback which in this case would probably require a more advanced testing capability than what was available... [1] - https://www.oracle.com/au/middleware/technologies/goldengate.html https://www.oracle.com/au/middleware/technologies/goldengate...