---
search:
  tags:
    - Contact details
    - PATCH
seo:
  description: >-
    Updates a phone number. Scoped to your integration's institution via Basic…
    Reference for the PATCH /users/{id}/phones/{phoneId} endpoint in the Fuxam
    API v4.
sidebar:
  label: Update a phone
  badge: PATCH
title: Update a phone
type: openapi-operation
---
Updates a phone number. Scoped to your integration's institution via Basic Auth credentials.

`PATCH /users/{id}/phones/{phoneId}`

**Request body** (`application/json`, required)

- `phoneNumber` (string)
- `phoneType` (string)
- `isPrimary` (boolean)

Request body example:

```json
{
  "phoneNumber": "string",
  "phoneType": "mobile",
  "isPrimary": true
}
```

**Responses**

- `200` — Phone updated
- `400` — Bad Request
- `401` — Unauthorized
- `404` — Not Found
- `429` — Too Many Requests — 1000 requests per minute per institution. Includes \`X-RateLimit-Limit\`, \`X-RateLimit-Remaining\`, \`X-RateLimit-Reset\` (ISO-8601), and \`Retry-After\` (seconds).
- `500` — Internal Server Error

Response example, 200:

```json
{
  "data": {
    "id": "string",
    "phoneNumber": "string",
    "phoneType": "mobile",
    "isPrimary": true,
    "createdAt": "2019-08-24T14:15:22Z",
    "updatedAt": "2019-08-24T14:15:22Z"
  },
  "meta": {
    "requestId": "req_1234567890_abc",
    "timestamp": "2026-06-02T07:00:00.000Z",
    "version": "v4",
    "watermark": "2019-08-24T14:15:22Z"
  }
}
```