---
title: "Get Unit Supplementary Data"
method: GET
path: "/datasets/{dataset_id}/unit-data/{identifier}"
---

# Get Unit Supplementary Data

`GET /datasets/{dataset_id}/unit-data/{identifier}`

Retrieve supplementary data for a particular unit given the dataset id and identifier, return 404 if no data is returned.

Parameters:
dataset_id (str): The unique id of the dataset being queried.
identifier (str): The identifier of the particular unit on the data being queried.

## Path parameters

- `dataset_id` string, required
- `identifier` string, required

## Response `200`

Successful Response

- UnitDataset
  - `dataset_id` string, required
  - `survey_id` string, required
  - `period_id` string, required
  - `form_types` string[], required
  - `data` unknown, required

## Other responses

- `400` — Bad Request
- `404` — Not Found
- `500` — Internal Server Error

---

[API](https://skmtc.net/office-of-national-statistics/apis/supplementary-data-service.md) · [All operations](https://skmtc.net/office-of-national-statistics/apis/supplementary-data-service/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/office-of-national-statistics/supplementary-data-service/revisions/9a87e51baf13/schema)