# PUT /admin/api/2021-01/customers/{customer_id}.json

**Resource:** [customers/customer](../resources/customers-customer.md)
**Updates a customer.**
**Operation ID:** `deprecated_202101_update_customers_param_customer_id`

https://shopify.dev/docs/admin-api/rest/reference/customers/customer#update-2021-01

## Parameters

| Name | In | Type | Required | Description |
|------|------|------|----------|-------------|
| `customer_id` | path | string | Yes | customer_id |

## Request Body

**Content Types:** `application/json`

## Responses

| Status | Description |
|--------|-------------|
| 200 |  |

