Payload

All webhook payloads follow a consistent top-level structure with event-specific data nested within the data object.

subscriptionIdstring

The subscription ID.

customerIdstring

The customer ID. Returns your externalId if you provided one when creating the customer, otherwise returns the Commet publicId.

planIdstring

The plan ID.

planNamestring

The plan name.

statusstring

Current status. One of: draft, pending_payment, trialing, active, past_due, canceled. Access is granted while trialing, active, or past_due — past_due is a permissive grace window during dunning, where you decide whether to keep serving the customer or block them.

startDatestring

ISO 8601 datetime when the subscription starts.

namestring | null

Optional custom name for the subscription.

{
  "event": "subscription.created",
  "timestamp": "2026-06-23T14:30:00.000Z",
  "organizationId": "8f14e45f-ceea-4e7a-9c3d-1c2b3a4d5e6f",
  "mode": "live",
  "apiVersion": "2026-07-31",
  "data": {
    "subscriptionId": "sub_1a2b3c4d",
    "customerId": "user_123",
    "planId": "pln_pro_monthly",
    "planName": "Pro",
    "status": "pending_payment",
    "startDate": "2026-03-25T14:30:00.000Z",
    "name": "Acme Corp"
  }
}