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

# Post partial event

`POST post.partial` (webhook)

Fired when a post publishes on some platforms and fails on others.

## Payload

- WebhookPayloadPost — Webhook payload for post events
  - `id` string, required — Stable webhook event ID
  - `event` 'post.scheduled' | 'post.published' | 'post.failed' | 'post.partial' | 'post.cancelled' | 'post.recycled', required
  - `post` object, required
    - `id` string, required
    - `content` string, required
    - `status` string, required
    - `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. Use it to route events by connected account (e.g. separate staging vs production endpoints). A post can span multiple accounts.
      - `platformPostId` string
      - `publishedUrl` string
      - `error` string
      - `errorCategory` 'auth_expired' | 'user_content' | 'user_abuse' | 'account_issue' | 'platform_rejected' | 'platform_error' | 'platform_rate_limit' | 'quota_exhausted' | 'system_error' | 'unknown' — Present when this target failed. Same taxonomy as `platforms[].errorCategory` on GET /v1/posts.
      - `errorSource` 'user' | 'platform' | 'system' — Present when this target failed. Who must act: user, platform or system (Zernio).
      - `platformError` PostPlatformError — The platform's own error for this target, so you can see what the platform said (access tokens are redacted). Set when the last attempt failed with an error the platform described (currently Instagram and Facebook), and kept while an automatic retry of that failure is pending or running; cleared when the target publishes or is retried manually. errorMessage stays the human-readable summary; this block is for diagnostics and support tickets. Instagram media processing failures carry no code or subcode, only Meta's status text in message.
        - `code` integer — Meta error code, when Meta sent one.
        - `subcode` integer — Meta error_subcode, when Meta sent one.
        - `message` string, required — The platform's raw error message or media processing status text.
    - `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.
  - `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.dev/zernio/apis/zernio-api.md) · [All operations](https://skmtc.dev/zernio/apis/zernio-api/llms.txt) · [OpenAPI document](https://skmtc.dev/zernio/apis/zernio-api/revisions/b2325332041a?raw)