---
title: CustomerUpdateInput - Customer API
description: The input fields to update a customer's personal information.
api_version: 2025-10
api_name: customer
type: input-object
api_type: graphql
source_url:
  html: https://shopify.dev/docs/api/customer/latest/input-objects/customerupdateinput
  md: https://shopify.dev/docs/api/customer/latest/input-objects/customerupdateinput.md
---

# Customer​Update​Input

input\_object

The input fields to update a customer's personal information.

## Fields

* first​Name

  [String](https://shopify.dev/docs/api/customer/latest/scalars/String)

  The customer's first name.

* last​Name

  [String](https://shopify.dev/docs/api/customer/latest/scalars/String)

  The customer's last name.

***

## Mutations using this input

* [customer​Update.​input](https://shopify.dev/docs/api/customer/latest/mutations/customerUpdate#argument-input)

  MUTATION

***

## Map

### Mutations using this input

* <\~>[customer​Update.input](https://shopify.dev/docs/api/customer/latest/mutations/customerUpdate#argument-input)