---
title: "Update customer contact"
method: PATCH
path: "/api/v1/customers/{id}"
tags: ["customers"]
---

# Update customer contact

`PATCH /api/v1/customers/{id}`

Partially updates customer contact fields (name, e-mail, phone, birth date, metadata). Document, type and externalId are immutable.

## Path parameters

- `id` string, uuid, required

## Request body

- CustomerUpdate
  - `email` object, nullable
  - `phone` object, nullable
  - `birth_date` object, nullable
  - `metadata` object, nullable

## Response `200`

Customer updated.

- CustomerUpdateResponse

## Other responses

- `400` — Request payload, query string, or path parameter failed validation.
- `401` — Authentication is missing, malformed, expired, or refers to a session that is no longer active.
- `403` — The caller is authenticated but lacks the required permission for this action.
- `404` — Customer not found in the caller account.
- `422` — The payload passed schema validation but breaks a domain invariant.
- `500` — Unexpected server error. The response body never leaks internal details.

## Changes

- **2026-07-07** `84194c31ab85` — 21 breaking, 3 warning, 1 info
  - the `birth_date` request property type/format changed from `string`/`` to `object`/``
  - the `email` request property type/format changed from `string`/`` to `object`/``
  - the `phone` request property type/format changed from `string`/`` to `object`/``
  - removed the required property `avg_ticket` from the response with the `200` status
  - …21 more

[Change history](https://skmtc.dev/kruzer-corp/apis/oms-api/changes/api/v1/customers/:id/patch.md)

---

[API](https://skmtc.dev/kruzer-corp/apis/oms-api.md) · [All operations](https://skmtc.dev/kruzer-corp/apis/oms-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/kruzer-corp/oms-api/revisions/e20d4f219a6a/schema)