---
title: "PATCH /v1/contactBooks/{contactBookId}/contacts/{contactId}"
method: PATCH
path: "/v1/contactBooks/{contactBookId}/contacts/{contactId}"
---

# PATCH /v1/contactBooks/{contactBookId}/contacts/{contactId}

`PATCH /v1/contactBooks/{contactBookId}/contacts/{contactId}`

## Path parameters

- `contactBookId` string, required
- `contactId` string, required

## Request body

- object
  - `firstName` string
  - `lastName` string
  - `properties` object
  - `subscribed` boolean

## Response `200`

Retrieve the user

- object
  - `contactId` string

## Changes

- **2024-08-10** `3ea85d80ac00` — 1 info
  - endpoint added
- **2024-05-21** `ad91eadfd8ee` — 1 breaking
  - api path removed without deprecation

[Change history](https://skmtc.dev/usesend/apis/usesend-api/changes/v1/contactBooks/:contactBookId/contacts/:contactId/patch.md)

---

[API](https://skmtc.dev/usesend/apis/usesend-api.md) · [All operations](https://skmtc.dev/usesend/apis/usesend-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/usesend/usesend-api/revisions/ee7832fe66a6/schema)