Returns, for each way usage reaches Revenium (provider billing sync, shown as Invoices; SDK or API metering and coding assistant telemetry, shown as Telemetry; and Traces), whether it has ever received data and when it last did. For traces, the source counts as connected once a call is linked into a trace: several calls sharing a trace id, a call that names its parent transaction, or a call that sets its own trace id. Every event Revenium receives carries a trace id of its own, so a call left on that default is not a trace on its own. providerBilling.lastReceived is accurate to the day only (always midnight UTC), because provider billing syncs are not timestamped to the moment.