---
title: "A/B tests and lift studies"
method: GET
path: "/v1/ads/studies"
tags: ["Ad Accounts"]
---

# A/B tests and lift studies

`GET /v1/ads/studies`

Lists the ad account's A/B tests and lift studies (Meta's `/act_X/ad_studies`), rows
returned verbatim. The default projection covers id, name, type, timing and cells with
split percentages; `fields` is a raw-passthrough override.

## Query parameters

- `accountId` string, required
- `adAccountId` string, required
- `fields` string
- `limit` integer
- `after` string

## Response `200`

Ad studies (raw Meta shape)

- object
  - `adAccountId` string
  - `data` object[]
  - `paging` object
    - `after` string, nullable — Cursor for the next page; null when exhausted.

## Other responses

- `400` — Invalid input, or Meta rejected the query
- `401` — Unauthorized
- `501` — Only supported on Meta (facebook/instagram)

---

[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/f81ca70ea6b9/schema)