VAULTZEN models plans, usage, credits and invoices as data, so pricing changes stop being engineering projects.
Try it nowMeter events idempotently, aggregate per window, and reconcile against the ledger.
Plans, add-ons, trials and proration expressed as data, not spreadsheets.
See exactly what a customer will be charged before the cycle closes.
Replay a year of usage in seconds to check a pricing change.
Retries, grace periods and cancellation flows with clear customer messaging.
Every ledger mutation has an actor, a reason and a timestamp.