---
title: "List custom conversions"
method: GET
path: "/v1/ads/conversions/custom-conversions"
tags: ["Conversions"]
---

# List custom conversions

`GET /v1/ads/conversions/custom-conversions`

## Request

- Base URL: `https://zernio.com/api`
- URL: `https://zernio.com/api/v1/ads/conversions/custom-conversions`
- Auth: HTTP bearer

Lists a Meta ad account's custom conversions, including archived ones.

The ad account's Meta custom conversions, including archived ones (`isArchived`).

## Query parameters

- `accountId` string, required
- `adAccountId` string, required

## Response `200`

Custom conversions

- object
  - `adAccountId` string
  - `data` CustomConversion[]
    - `id` string
    - `name` string, nullable
    - `rule` object, nullable: Meta's rule, parsed back from the string Meta stores.
    - `customEventType` string, nullable
    - `pixelId` string, nullable: Meta's event_source_id, the pixel the rule reads from.
    - `isArchived` boolean
    - `defaultConversionValue` number, nullable: Value Meta assigns a conversion that carries none, in the ad account's currency.

## Other responses

- `400`: Invalid input, or Meta rejected the query
- `401`: Missing or invalid API key. `code` is `missing_credentials` when no Authorization header was sent and `invalid_credentials` when the key is unknown, revoked or expired.
- `403`: Ads access required, or the token lacks the ads permissions. Also returned with code `ad_account_not_selected` when the connection has selected ad accounts and the targeted ad account is not among them. `details` carries `accountId`, `adAccountId` and `selectedAdAccountIds`. Fix: add the ad account to the selection (GET /v1/connect/{platform}/ads with adAccountIds, which replaces the selection), or use a connection that has it selected.
- `404`: The account or requested resource was not found or is not accessible. An account ID may have been disconnected and removed. Read GET /v1/accounts for current account IDs.
- `409`: The account exists but is inactive or needs reconnection. Reconnect it, then read GET /v1/accounts for its current account ID before retrying. Code: ads_connection_required.

## Changes

- **2026-11-11** `34f8dbff5e0d`: 1 info
  - endpoint added

[Operation history](https://skmtc.dev/zernio/apis/zernio-api/changes/v1/ads/conversions/custom-conversions/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/21ba7421089d?raw)