Subscription Cancelled

Fires when a subscription is cancelled. The eventType is subscription_cancelled. Category: COMMERCE.

Deduplicate on event_id. Money is integer cents. This is not a new purchase — do not attribute it as one.

Field guarantees

Field	Guarantee
`subscription_id`, `subscription_status`	✅ Always present
`total_value_cents`, `currency`	⚠️ Conditional — may be absent when the subscription has no amount/currency set
`plan_type`, `first_purchase`	⚠️ Added by the v2 sanitizer when the subscription can be joined to a checkout order
`attribution`	⚠️ Omitted when no tracking data was captured
`journey_id`	⚠️ Omitted when no journey relationship is resolved

Payload (v2)

{
  "event_type": "subscription_cancelled",
  "event_id": "evt::example",
  "api_version": "2026-08-17",
  "timestamp": "2026-05-26T12:00:00.000Z",
  "timestamp_epoch": 1779796800,
  "affiliate_id": "aff::example",
  "patient_id": "pat::example",
  "patient_external_id": "ext-patient-123",
  "patient_marketing_consent": false,
  "is_returning_patient": false,
  "subscription_id": "esub::example",
  "subscription_status": "pending-cancel",
  "total_value_cents": 4999,
  "currency": "usd"
}

Field	Type	Always?	Notes
`subscription_id`, `subscription_status`	string	✅
`total_value_cents`, `currency`	number/string	⚠️	Absent if the subscription has no amount/currency
`attribution`	object	⚠️	See Attribution Passthrough.