The balance fell below the low-balance threshold (delivery rolling out)

Illustrative payload; the data fields may still change until delivery starts. Same headers and retries as lookup.completed.

postWebhookbalance.low

Payload

typestring required
idstring required
created_atstring date-time required
dataobject required

The object the event is about (never phone numbers or e-mail addresses).

Example payload

{
  "type": "job.completed"
}

Response

Any 2xx acknowledges the event.

Changes

Webhooks have no change history: a webhook is keyed by its event name rather than a path and method, so no recorded change can name it.