# CustomerUpdateInput

Input for updating an existing customer account. All fields are optional, allowing partial updates to customer profile information including personal details, contact information, and address data.

## Input Definition

```graphql
input CustomerUpdateInput {
  firstName: String
  lastName: String
  phone: String
  address1: String
  address2: String
  city: String
  zipcode: String
  country: String
  region: String
  company: String
  vatNumber: String
  companyId: String
  acceptsMarketing: Boolean
}
```

## Fields

| Field | Type | Required | Description |
|-------|------|----------|-------------|
| firstName | String | No | The customer's first name |
| lastName | String | No | The customer's last name |
| phone | String | No | The customer's phone number |
| address1 | String | No | The first line of the customer's address |
| address2 | String | No | The second line of the customer's address |
| city | String | No | The customer's city |
| zipcode | String | No | The customer's postal/zip code |
| country | String | No | The customer's country code (ISO 3166-1 alpha-2) |
| region | String | No | The customer's state/province/region |
| company | String | No | The customer's company name |
| vatNumber | String | No | The customer's VAT number |
| companyId | String | No | The customer's company/business ID |
| acceptsMarketing | Boolean | No | Whether the customer accepts marketing communications |

## Example

```graphql
mutation UpdateCustomer {
  updateCustomer(input: {
    firstName: "John"
    lastName: "Doe"
    phone: "+1-555-0123"
    address1: "123 Main Street"
    address2: "Suite 100"
    city: "New York"
    zipcode: "10001"
    country: "US"
    region: "NY"
    company: "Acme Corp"
    vatNumber: "IE1234567T"
    companyId: "comp_98765"
    acceptsMarketing: true
  }) {
    id
    firstName
    lastName
    email
  }
}
```

## Related Types

No related types provided in source material.