“From your subscription business you can get money from people that never had a subscription and start new, people that upgraded, people that renew, or people that used to have a subscription, churned, and then came back. Having the history of how these four buckets evolve can tell you a lot.”

Map revenue in four buckets — new, upgrade, renewal, winback — to spot anomalies instantly

Rather than watching a single revenue line, decompose it into four cohort flows: new subscribers, upgrades, renewals, and reactivations. When a single bucket moves, it narrows the cause immediately — a spike in new subscriber revenue points to a pricing or acquisition change, not a product problem. This framework makes historical diagnosis fast and makes gaps in your experiment log visible.