---
title: CustomerUpdateInput - Customer API
description: The input fields to update a customer's personal information.
api_version: 2026-04
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#arguments-input)

  ARGUMENT

***

## Map

### Mutations using this input

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