subscription.past_due

When this fires

A scheduled charge fails but the subscription remains within its grace window. The platform will continue to attempt collection.

Coverage is partial: only Stripe and Razorpay report the past-due transition back to Subscriby. Failed renewals on PayPal, Paystack, Skrill, CeyPay, and CoinPayments emit payment.failed without a matching subscription.past_due, so treat payment.failed as the reliable cross-provider signal.

Required ability

project-subscription:view — token must carry this at mint time to subscribe an endpoint to this event.

Payload

{
  "id": "evt_01HX...",
  "type": "subscription.past_due",
  "created_at": "2026-06-18T10:05:00Z",
  "api_version": "2026-05-01",
  "project_id": "7f3d1c92-8b45-4e6a-9d21-5c8e0a4b6f13",
  "data": {
    "subscription_id": "5b7e2d40-1a86-4c39-97f2-e83d0b16c5a4",
    "plan_id": "c4e82f16-93a7-4d5b-b81c-6e0f27a94d3b",
    "subscriber_id": "2a91c4e7-6f38-4b52-8e0d-9c1a7b3f5d80",
    "provider": "razorpay",
    "external_payment_id": "pay_NxYz.."
  }
}

Field reference

Field	Type	Notes
`id`	string ULID	Unique event id, prefixed `evt_`. Use for idempotent processing.
`type`	string	Always `subscription.past_due` for this event.
`created_at`	ISO 8601 timestamp	Server-side emission time.
`api_version`	string	Webhook API contract version.
`project_id`	string UUID	Project this event belongs to.
`data.subscription_id`	string UUID	Subscription identifier.
`data.plan_id`	string UUID	Plan the subscription is on.
`data.subscriber_id`	string UUID	Subscriber's project-scoped user id.
`data.provider`	string	Payment provider slug.
`data.external_payment_id`	string	Razorpay path only — absent on the Stripe path. Provider charge id for the failed attempt; useful for support escalation.

Caveats

Pairs with a payment.failed event for the underlying charge.
If retries succeed, subscription.renewed follows. If grace expires, subscription.unpaid fires instead.

payment.failed — paired payment event.
subscription.unpaid — grace-window terminal state.
Subscription events overview — back to family overview.