---
title: "Change identifier on Auth engine"
method: POST
path: "/auth/v1/user/updateIdentifierValue"
---

# Change identifier on Auth engine

`POST /auth/v1/user/updateIdentifierValue`

This API enables you to change identifier values in the Auth engine database.

## Request body

- object
  - `newIdentifierValue` string, required — New identifier value for the selected identifier type.
  - `identifierType` 'MOBILE' | 'EMAIL', required — Identifier type of the customer.
  - `identifierValue` string, required — Old identifier value for the selected identifier type.
  - `brand` string, required — Organisation name.
  - `token` string, required — Token generated using auth/v1/web/token/generate
  - `deviceId` string, required — Unique ID of the device from which the customer has generated the token.

## Response `200`

200

- object
  - `status` object
    - `success` boolean
    - `code` integer
    - `message` string

## Other responses

- `400` — 400

---

[API](https://skmtc.net/capillarytech/apis/sample-api.md) · [All operations](https://skmtc.net/capillarytech/apis/sample-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/capillarytech/sample-api/revisions/de241f2ed9b3/schema)