---
title: "Read a Facebook Page's webhook subscription"
method: GET
path: "/v1/accounts/{accountId}/webhook-subscription"
tags: ["Connect"]
---

# Read a Facebook Page's webhook subscription

`GET /v1/accounts/{accountId}/webhook-subscription`

Returns the webhook fields Zernio's app is subscribed to on the connected Page, read live from Meta.
Use it to confirm `leadgen` is present: a Page missing it keeps delivering every other event while
lead ads stop arriving, with nothing to indicate it.

## Path parameters

- `accountId` string, required

## Response `200`

The Page's current subscription

- object
  - `pageId` string
  - `appSubscribed` boolean — False when the Page carries no subscription for our app at all.
  - `leadgen` boolean — Whether lead ads submitted on this Page reach Zernio in real time.
  - `subscribedFields` string[]
  - `warning` string, nullable — Present only when leadgen is missing.

## Other responses

- `400` — Invalid request
- `404` — Resource not found
- `409` — The connection has no selected Page

## Changes

- **2026-09-16** `3e6ddf2a99ea` — 1 info
  - added the optional property `details/budgetScope` to the response with the `400` status
- **2026-09-15** `0dba7d004d75` — 2 info
  - added the optional property `details/quotaExhausted` to the response with the `400` status
  - added the optional property `details/quotaScope` to the response with the `400` status
- **2026-09-12** `06acc34a7017` — 1 info
  - endpoint added

[Change history](https://skmtc.dev/zernio/apis/zernio-api/changes/v1/accounts/:accountId/webhook-subscription/get.md)

---

[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/be448f13ecdc?raw)