---
title: "Post platform deleted event"
method: POST
path: "post.platform.deleted"
tags: ["Webhook Events"]
---

# Post platform deleted event

`POST post.platform.deleted` (webhook)

Fired when Zernio's background sync detects that a platform target
published through Zernio was later deleted on the platform (e.g.
the user deleted the Instagram post natively). Detection is
poll-driven (~hourly), not real-time, and fires once per platform
target. `platform.deletedAt` carries the detection time. Detection
is listing-based: a false positive self-heals in Zernio's data when
the post reappears, but the event is not retracted. Coverage is
bounded to the posts the platform listing returns.

## Payload

- WebhookPayloadPostPlatform — Webhook payload for the per-platform terminal events `post.platform.published` and `post.platform.failed`, for `post.platform.deleted` (same shape, fired when Zernio's background sync detects that a platform target published through Zernio was later deleted on the platform; poll-driven ~hourly, not real-time), and for `post.tiktok.url_resolved` (same shape, fired when a published TikTok post's public URL is backfilled). Terminal events fire once per platform target inside a post as that platform reaches a terminal state (published or permanent failure). The `post` envelope mirrors the shape of `WebhookPayloadPost` so consumers can reuse rendering logic; the `platform` block identifies which specific platform transitioned; the `account` block identifies the connected social account behind that platform-write.
  - `id` string, required — Stable webhook event ID.
  - `event` 'post.platform.published' | 'post.platform.failed' | 'post.platform.deleted' | 'post.tiktok.url_resolved', required
  - `post` object, required
    - `id` string, required
    - `content` string, required
    - `status` string, required — Post-level status AT FIRE TIME. May still be `publishing` if other platforms haven't terminated; check this field rather than assuming.
    - `scheduledFor` string, date-time, required
    - `publishedAt` string, date-time
    - `platforms` object[], required
      - `platform` string, required
      - `status` string, required
      - `accountId` string — SocialAccount id this platform target published through. On post.platform.* events see also the top-level `account` block.
      - `platformPostId` string
      - `publishedUrl` string
      - `error` string
    - `metadata` object — The free-form `metadata` object supplied when the post was created, echoed back so you can map events onto your own records. Omitted when the post was created without it.
  - `platform` object, required — The specific platform that just transitioned to a terminal state.
    - `name` string, required — Platform name (e.g. `twitter`, `tiktok`, `instagram`).
    - `status` 'published' | 'failed' | 'deleted', required — Terminal status this event fires on. Matches the event suffix.
    - `platformPostId` string — Platform-native post id. Present on `published` and `deleted`, absent on `failed`.
    - `publishedUrl` string — Public URL to the platform-side post. Present on `published` (when the platform exposes one and it is not a draft) and on `deleted` (when one was recorded at publish time).
    - `error` string — Error message from the platform. Present on `failed` only.
    - `deletedAt` string, date-time — When the platform-side deletion was detected by Zernio sync (ISO 8601). Present only on `post.platform.deleted`.
  - `account` object, required — The connected social account the platform-write went through.
    - `accountId` string, required
    - `platform` string, required
    - `username` string, required
    - `displayName` string
  - `timestamp` string, date-time, required — UTC time at which Zernio generated this event (set once when the event payload is built, before delivery is queued). Retries and redeliveries keep the original value, so it reflects the event, not the delivery attempt.

## Acknowledgement `200`

Webhook received successfully

---

[API](https://skmtc.net/zernio/apis/zernio-api.md) · [All operations](https://skmtc.net/zernio/apis/zernio-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/zernio/zernio-api/revisions/e0cd92070858/schema)