---
title: "Rename a variable, or change its unit"
method: PATCH
path: "/workspaces/{id}/questions/{questionId}/variables/{variableId}"
tags: ["switching"]
---

# Rename a variable, or change its unit

`PATCH /workspaces/{id}/questions/{questionId}/variables/{variableId}`

## Request

- Base URL: `https://api.swingfactor.ai/v1`
- URL: `https://api.swingfactor.ai/v1/workspaces/{id}/questions/{questionId}/variables/{variableId}`
- Auth: HTTP bearer

## Path parameters

- `id` string, uuid, required
- `questionId` string, uuid, required
- `variableId` string, uuid, required

## Request body

- VariablePatchBody
  - `name` string
  - `unit` string
  - `reason` string: Why — kept in the history.

## Response `200`

The variable.

- Variable
  - `id` string, uuid, required
  - `workspaceId` string, uuid, required
  - `questionId` string, uuid, required
  - `propositionId` string, uuid, required
  - `name` string, required
  - `unit` string
  - `createdBy` string, uuid
  - `createdAt` string, required
  - `draftId` string, uuid: Set where SwingFactor drafted it.
  - `updatedAt` string, required
  - `links` VariableLinks, required: Relative /v1 URLs to follow.
    - `self` string, required
    - `estimates` string, required
    - `breakEvens` string, required
    - `proposition` string, required
    - `question` string, required

## Other responses

- `401`: No token, or not a valid one: `unauthorized`.
- `404`: No such variable.

---

[API](https://skmtc.dev/swingfactor/apis/swingfactor-api.md) · [All operations](https://skmtc.dev/swingfactor/apis/swingfactor-api/llms.txt) · [OpenAPI document](https://skmtc.dev/swingfactor/apis/swingfactor-api/revisions/c2fe881a39c3?raw)