---
title: customerDefaultAddressUpdate - Storefront API
description: Updates the default address of an existing customer.
api_version: 2025-10
api_name: storefront
type: mutation
api_type: graphql
source_url:
  html: https://shopify.dev/docs/api/storefront/latest/mutations/customerDefaultAddressUpdate
  md: https://shopify.dev/docs/api/storefront/latest/mutations/customerDefaultAddressUpdate.md
---

# customer​Default​Address​Update

mutation

Requires `unauthenticated_write_customers` access scope.

Updates the default address of an existing customer.

## Arguments

* address​Id

  [ID!](https://shopify.dev/docs/api/storefront/latest/scalars/ID)

  required

  ID of the address to set as the new default for the customer.

* customer​Access​Token

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

  required

  The access token used to identify the customer.

***

## Customer​Default​Address​Update​Payload returns

* customer

  [Customer](https://shopify.dev/docs/api/storefront/latest/objects/Customer)

  The updated customer object.

* customer​User​Errors

  [\[Customer​User​Error!\]!](https://shopify.dev/docs/api/storefront/latest/objects/CustomerUserError)

  non-null

  The list of errors that occurred from executing the mutation.

* user​Errors

  [\[User​Error!\]!](https://shopify.dev/docs/api/storefront/latest/objects/UserError)

  non-nullDeprecated

  The list of errors that occurred from executing the mutation.

***

## Examples

* ### customerDefaultAddressUpdate reference

## Mutation Reference

```graphql
mutation customerDefaultAddressUpdate($customerAccessToken: String!, $addressId: ID!) {
  customerDefaultAddressUpdate(customerAccessToken: $customerAccessToken, addressId: $addressId) {
    customer {
      # Customer fields
    }
    customerUserErrors {
      # CustomerUserError fields
    }
  }
}
```

## Input

```json
{
  "customerAccessToken": "<your-customerAccessToken>",
  "addressId": "gid://shopify/<objectName>/10079785100"
}
```