What could cause a newly defined approval policy to not trigger in a new Change model?

The reason that the choice about the "Apply Change Approval Policy" action not referencing the new Approval Policy is correct revolves around how approval policies are implemented and integrated within the change management process.

When a new Change model is defined, it usually has an associated action that controls which approval policies apply to it. If that action does not reference the newly defined Approval Policy, then the policy will not trigger as expected when the change request is processed. This lack of reference means the system is not instructed to utilize the new policy, leaving it inactive during approval workflows.

For context, if the business rule that determines how approval policies are applied has not been updated, it may still function if it is correctly set to apply the new policy. Additionally, while it is critical to ensure that workflows are created correctly, the existence of the correct workflow alone does not guarantee the right approval policy applies unless it specifically references that policy. Lastly, even system properties should be verified, but if they are configured correctly, they wouldn’t impede the triggering of an approval policy directly unless there is an explicit blockage related to them.

Thus, the integration and reference point for policies is paramount for triggering processes correctly, making the second choice the key factor in this scenario.