---
title: "Unmerge Users"
method: POST
path: "/api/v1/users/{user_id}/unmerge"
tags: ["Users"]
---

# Unmerge Users

`POST /api/v1/users/{user_id}/unmerge`

## Request

- Base URL: `https://public-api.linearb.io`
- URL: `https://public-api.linearb.io/api/v1/users/{user_id}/unmerge`
- Auth: API key in header `x-api-key`
- TypeScript: <https://skmtc.dev/linearb/apis/linearb-api/docs/api/v1/users/:user_id/unmerge/post.ts> (a function with typed inputs; its response is checked against the schema)

Users API endpoint splits one or more users out of a unified user. Each user listed becomes a standalone unified user again. The primary user cannot be unmerged - set a new primary first.

## Path parameters

- `user_id` integer, required: Unified user object ID

## Request body

- UserUnmergeRequestModel
  - `users` integer[], required: IDs of the merged users to split back out

## Response `200`

Successful Response

- UserUnmergeResponseModel
  - `user_id` integer, required
  - `primary_user` integer, required
  - `merged_users` integer[], required
  - `unmerged_users` integer[], required

## Other responses

- `400`: Bad Request
- `401`: Unauthorized
- `403`: Forbidden
- `404`: Not Found
- `405`: Method Not Allowed
- `409`: Conflict
- `422`: Validation Error
- `500`: Internal Server Error
- `504`: Gateway Timeout

---

[API](https://skmtc.dev/linearb/apis/linearb-api.md) - [All operations](https://skmtc.dev/linearb/apis/linearb-api/llms.txt) - [OpenAPI document](https://skmtc.dev/linearb/apis/linearb-api/revisions/3aea06710db6?raw)