Returns the meter value time-series and lifecycle events for a finished charging session.

Availability. Snapshots are generated when a session completes. Active sessions return 404. Finished sessions without snapshots, including sessions that finished before snapshot generation was available, also return 404. There is no historical backfill. Confirmed transaction boundary events are included only in snapshots generated after those event types became available; existing snapshots are not modified. A boundary event is omitted when its timestamp or precise meter reading is unavailable.

For active sessions, use GET /logs/communication/v1.0?filter[sessionId]={id}&filter[command]=MeterValues to read real-time OCPP meter values from communication logs (6-month retention).