Build an SD WAN review from plant downtime evidence

A CFO who asks for an SD WAN business case is usually deciding how much uncertainty the capital committee can accept. The account executive should help build an evidence package that separates network incidents from machine control, power, and process causes. That makes the committee discussion more credible and gives each owner a practical contribution.

Begin with the reported downtime. Ask how the company records lost production, who classifies the cause, and whether the events include timestamps that can be compared with network records. Ask plant engineering what happened at the line, and ask IT what the network monitoring showed. Finance can then decide which assumptions are appropriate for the business case. Do not turn an estimated loss into a promised savings figure.

In a fictional conversation, Leila, the manufacturing CFO, says, “What savings can you guarantee if we refresh the network?” Thomas answers, “I cannot guarantee savings. The downtime report appears to combine several causes, so a committee would benefit from a clear baseline. Could we examine a sample of incidents with plant engineering and IT, then document the assumptions finance accepts?” Leila says the capital committee also requires a risk register. Thomas replies, “That is helpful. We can list dependencies such as line controls, contract dates, and site readiness beside the network options. Your team can decide which risks belong in the proposal.”

The important decision is whether an incident record supports a network claim. When it does not, mark it for review instead of forcing it into the calculation. A smaller, well supported case usually helps the committee more than a large estimate with unclear causes.

Practice by taking four fictional incident descriptions and labeling each as confirmed network, confirmed nonnetwork, mixed, or unknown. Explain one label aloud to a finance leader. Then draft a risk register entry with an owner and a source for the fact. Review whether every economic statement can be traced to a record or a stated assumption.