Which stage of the change management process deals with what should be done if the change is unsuccessful?

Remediation planning is the stage in change management that defines the steps to recover from an unsuccessful change, including rollback plans and contingency actions. It ensures that if a change cannot proceed as expected, there is a predefined path to restore the service to its previous stable state. This planning must be completed before the change is implemented to minimize downtime and service impact.

Categorization involves classifying changes by type such as standard, normal, or emergency based on their nature, not determining recovery actions for failed changes.

Prioritization involves determining the urgency and importance of a change request relative to other changes, not what to do when a change fails.

Review and close is a post-implementation activity that evaluates overall success and captures lessons learned from the change, not planning for failure scenarios in advance.