You have been asked to create a way for users to order a new iPhone, but only if they get two levels of approval. The approvers and users should be automatically notified at each approval level. What

Approval Chains are a concept or outcome of an approval process, not the feature used to build and manage the entire workflow with notifications.

Flows, specifically using Flow Designer in ServiceNow, are designed to automate complex business processes like multi-level approvals and trigger automatic notifications at each stage. They provide a visual interface to define the logic, conditions, and actions required for such a workflow.

Approver Delegates allow an approver to assign their approval duties to another user, but they do not manage the overall approval workflow or notifications.

Parent-Child Approvers is not a standard ServiceNow feature for configuring multi-level approval workflows.

Approval Criteria defines the conditions for an approval, but it doesn't manage the sequential levels of approval or the associated notifications.