Reference

Task events

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One event fires on the task resource. Tasks live under an onboarding — both ids are on the payload so you can route to the right team without a second lookup.

EVENT TYPES
TypeFires when
task.completedA task is marked complete by a teammate, by a portal user, or by an automation.
PAYLOAD
task.completed
1{
2  "id": "evt_2nQv...",
3  "type": "task.completed",
4  "data": {
5    "object": {
6      "id": "tsk_2N...",
7      "onboarding_id": "onb_2N...",
8      "customer_id": "cus_2N...",
9      "display_id": 5102,
10      "title": "Share API keys with the Acme team",
11      "completed_at": "2026-05-26T14:08:32.000Z",
12      "completed_by": "portal:contact_2N...",
13      "assignee_email": "csm@yourdomain.com"
14    }
15  }
16}