Subscription Variable Usage
The live counter for one meter on one subscription.
Overview
Whenever a Variable Component is part of a Subscription, Revvly maintains a counter row that tracks current and cumulative usage, peak values, rollover units, and (for commission components) GMV / transaction counts. The counters drive overage charges, true-up invoices, and limit enforcement. Counters reset according to the Variable Component's limit period configuration. For a component whose quantity resets each period, the counter is not the last word: when the period closes Revvly captures the accumulated total as a Usage Reading before the counter resets, and the invoice for that period waits until the reading is sealed or waived. That is what stops a metered period being billed on a number nobody looked at, and it is why an integration that goes quiet holds an invoice rather than quietly billing zero — see the Capture metered usage guide.
How it connects
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- One per (Subscription, Meter) pair
- Updated by the Event Ingestion API
- Closes into a Usage Reading each period on components that reset
- Drives Variable Invoice Lines
Key fields
What you’ll see when creating or editing a Subscription Variable Usage.