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Available from API version 2026-05-27.curie onwards.
Triggered when a smart meter order is cancelled and will not progress further. The order resource carries a cancellation_reason field describing why. A subscription can only ever have one smart meter order, so a cancelled order is terminal.

Response body parameters

id
string
required
Unique event identifier (starts with evt_).
timestamp
string
required
ISO 8601 timestamp when the event was created.
topic
literal
required
Always meter_order.cancelled for this event.
context
object
required
Event-specific data containing related resource IDs.
{
  "id": "evt_mi4f0oda6x9m7gcsvjk0ole1",
  "timestamp": "2026-01-15T10:30:00.000Z",
  "topic": "meter_order.cancelled",
  "context": {
    "meter_order": "prdo_mi4f0oda6x9m7gcsvjk0ole1"
  }
}