---
title: customerUpdate - Customer API
description: Updates the customer's personal information.
api_version: unstable
api_name: customer
type: mutation
api_type: graphql
source_url:
  html: 'https://shopify.dev/docs/api/customer/latest/mutations/customerUpdate'
  md: 'https://shopify.dev/docs/api/customer/latest/mutations/customerUpdate.md'
---

# customer​Update

mutation

Updates the customer's personal information.

## Arguments

* input

  [Customer​Update​Input!](https://shopify.dev/docs/api/customer/unstable/input-objects/CustomerUpdateInput)

  required

  Specifies the input fields for the customer update.

***

## Customer​Update​Payload returns

* customer

  [Customer](https://shopify.dev/docs/api/customer/unstable/objects/Customer)

  The customer's personal information that has been updated.

* user​Errors

  [\[User​Errors​Customer​User​Errors!\]!](https://shopify.dev/docs/api/customer/unstable/objects/UserErrorsCustomerUserErrors)

  non-null

  The list of errors that occurred from executing the mutation.

***

## Examples

* ### Updates a customer's first and last name

  #### Description

  Update a customer's first and last name

  #### Query

  ```graphql
  mutation customerUpdate($input: CustomerUpdateInput!) {
    customerUpdate(input: $input) {
      userErrors {
        field
        message
      }
      customer {
        firstName
        lastName
      }
    }
  }
  ```

  #### Variables

  ```json
  {
    "input": {
      "firstName": "Quinn",
      "lastName": "Ishida"
    }
  }
  ```

  #### cURL

  ```bash
  curl -X POST \
  https://your-development-store.myshopify.com/customer/api/unstable/graphql \
  -H 'Content-Type: application/json' \
  -H 'Authorization: {access_token}' \
  -d '{
  "query": "mutation customerUpdate($input: CustomerUpdateInput!) { customerUpdate(input: $input) { userErrors { field message } customer { firstName lastName } } }",
   "variables": {
      "input": {
        "firstName": "Quinn",
        "lastName": "Ishida"
      }
    }
  }'
  ```

  #### Response

  ```json
  {
    "customerUpdate": {
      "userErrors": [],
      "customer": {
        "firstName": "Quinn",
        "lastName": "Ishida"
      }
    }
  }
  ```

* ### customerUpdate reference