---
title: "Changes to Get Unit Supplementary Data"
method: GET
path: "/v1/unit_data"
---

# Changes to Get Unit Supplementary Data

`GET /v1/unit_data`

> Every recorded change to this operation, newest first.
> 32 revisions in range; 2 not diffed.

## Timeline

Changed in 3 of 32 revisions.

- **2026-07-01** `9a87e51baf13`: 1 breaking, 7 info
- **2023-09-19** `581b6221203d`: 1 breaking, 1 warning
- **2023-08-25** `ac59298eeeb5`: 5 info

## Changes

- **2026-07-01** `9a87e51baf13`: 1 breaking, 7 info
  - the response's body type changed from no type to `object` for status `200`
  - api operation id `get_unit_supplementary_data_v1_unit_data_get` removed and replaced with `Get_unit_supplementary_data_v1_unit_data_get`
  - endpoint deprecated
  - added the required property `data` to the response with the `200` status
  - added the required property `dataset_id` to the response with the `200` status
  - added the required property `form_types` to the response with the `200` status
  - added the required property `period_id` to the response with the `200` status
  - added the required property `survey_id` to the response with the `200` status
- **2023-09-19** `581b6221203d`: 1 breaking, 1 warning
  - added the new required `query` request parameter `identifier`
  - deleted the `query` request parameter `unit_id`
- **2023-08-25** `ac59298eeeb5`: 5 info
  - api operation id `get_unit_supplementary_data_v1_unit_data_get` was added
  - added the media type `application/json` for the response with the status `200`
  - added the media type `application/json` for the response with the status `400`
  - added the media type `application/json` for the response with the status `404`
  - added the media type `application/json` for the response with the status `500`

---

[Operation](https://skmtc.dev/office-of-national-statistics/apis/supplementary-data-service/docs/v1/unit_data/get.md) - [API](https://skmtc.dev/office-of-national-statistics/apis/supplementary-data-service.md) - [Page](https://skmtc.dev/office-of-national-statistics/apis/supplementary-data-service/changes/v1/unit_data/get)