When a new business process is introduced, there needs to be a plan for implementing, buy in from the stakeholders and people using the new process from a cross-functional team of experts.
Once defined, the plan needs to be implemented in a safe environment for training and testing purposes where each component can be segmented and verified in its own silo and combined with any other integrated systems to prove proper results through the chain.
Finally, the plan must be replicated from the quarantined test environment to the production environment to be used going forward.