What is an Approval Workflow?

A typical approval workflow defines who needs to approve (a single manager, a specific role, or a multi-stage chain), what happens while approval is pending (the action is queued, not executed), and what happens on rejection (the requester is notified, often with a reason). This structure exists specifically for actions where the cost of an unauthorized or mistaken execution is high enough to justify the friction of a human checkpoint. Good approval workflows balance rigor against speed: too many required approvers or too slow a response time and the workflow becomes a bottleneck people route around; too lax and it stops functioning as a real control. Automated systems often set an expiration or escalation path — if the primary approver doesn't respond within a defined window, the request escalates to a backup rather than sitting in limbo indefinitely. Approval workflows are also an audit artifact in their own right: who approved what, when, and under what stated justification is exactly the record a compliance review or incident investigation needs, which is why the approval record itself is usually retained even after the underlying action completes.