> For the complete documentation index, see [llms.txt](https://docs.ecwid.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.ecwid.com/api-reference/rest-api/customers/update-customer.md).

# Update customer

<mark style="color:purple;">`PUT`</mark> `https://app.ecwid.com/api/v3/{storeId}/customers/{customerId}`&#x20;

<details>

<summary>Request and response example</summary>

Request:

```http
PUT /api/v3/1003/customers/177737165 HTTP/1.1
Authorization: Bearer secret_token
Host: app.ecwid.com
Content-Type: application/json
Cache-Control: no-cache

{
  "customerGroupId": 9367001,
  "customerGroupName": "VIP"
}
```

Response:

```json
{
  "updateCount": 1
}
```

</details>

### Required access scopes

Your app must have the following **access scopes** to make this request: `read_customers` , `update_customers`

### Path params

All path params are required.

| Param      | Type   | Description           |
| ---------- | ------ | --------------------- |
| storeId    | number | Ecwid store ID.       |
| customerId | number | Internal customer ID. |

### Headers

The **Authorization** header is required.

<table><thead><tr><th>Header</th><th width="252">Format</th><th>Description</th></tr></thead><tbody><tr><td>Authorization</td><td><code>Bearer secret_ab***cd</code></td><td>Access token of the application.</td></tr></tbody></table>

### Request JSON

A JSON object with the following fields:

| Field             | Type                                                     | Description                                                                                                                                                                                                                               |
| ----------------- | -------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| email             | string                                                   | Customer's email.                                                                                                                                                                                                                         |
| billingPerson     | object [billingPerson](#billingperson)                   | Customer's billing name/address.                                                                                                                                                                                                          |
| shippingAddresses | array of objects [shippingAddresses](#shippingaddresses) | List of saved shipping addresses for the customer.                                                                                                                                                                                        |
| contacts          | array of objects [contacts](#contacts)                   | Customer's contact information: email, phone, social media links.                                                                                                                                                                         |
| customerGroupId   | number                                                   | ID of the customer group the customer is assigned to.                                                                                                                                                                                     |
| b2b\_b2c          | string                                                   | <p>Defines business-to-customer relation. One of:<br><code>b2c</code> - Business-to-customer (default)<br><code>b2b</code> - Business-to-business</p>                                                                                     |
| taxId             | string                                                   | Customer's tax ID.                                                                                                                                                                                                                        |
| taxIdValid        | boolean                                                  | Defines if customer's tax ID is valid.                                                                                                                                                                                                    |
| taxExempt         | boolean                                                  | <p>Defines if customer is tax exempt. Requires a valid tax ID.<br><br>Read more about handling tax exempt customers in <a href="https://support.ecwid.com/hc/en-us/articles/213823045-Handling-tax-exempt-customers">Help Center</a>.</p> |
| acceptMarketing   | boolean                                                  | <p>Defines if the customer has accepted email marketing. <br><br>If <code>true</code>, you can use customer's email for promotions.</p>                                                                                                   |
| lang              | string                                                   | <p>Customer's language code. Customers see storefront and emails in this language.<br><br>This language must be one of the translations enabled in the store.</p>                                                                         |
| privateAdminNotes | string                                                   | Personal notes about the customer. Visible only to the store owner.                                                                                                                                                                       |

#### billingPerson

| Field               | Type   | Description                                           |
| ------------------- | ------ | ----------------------------------------------------- |
| name                | string | Full name of the customer.                            |
| companyName         | string | Customer's company name.                              |
| street              | string | Address line 1 and address line 2, separated by `\n`. |
| city                | string | City.                                                 |
| countryCode         | string | Two-letter country code.                              |
| countryName         | string | Country name.                                         |
| postalCode          | string | Postal/ZIP code.                                      |
| stateOrProvinceCode | string | State/province code, for example, `NY`.               |
| phone               | string | Customer's phone number.                              |

#### shippingAddresses

| Field               | Type   | Description                                                              |
| ------------------- | ------ | ------------------------------------------------------------------------ |
| id                  | number | Internal ID of the saved address.                                        |
| name                | string | Full name of the customer.                                               |
| companyName         | string | Customer's company name.                                                 |
| street              | string | Address line 1 and address line 2, separated by `\n`.                    |
| city                | string | City.                                                                    |
| countryCode         | string | Two-letter country code.                                                 |
| countryName         | string | Country name.                                                            |
| postalCode          | string | Postal/ZIP code.                                                         |
| stateOrProvinceCode | string | State/province code, for example, `NY`.                                  |
| phone               | string | Customer's phone number.                                                 |
| addressFormatted    | string | Formatted full address. Includes street, city, state, and country names. |

#### contacts

<table><thead><tr><th width="167.4375">Field</th><th width="109.3515625">Type</th><th>Description</th></tr></thead><tbody><tr><td>id</td><td>number</td><td>Internal ID of the customer contact, for example, <code>113861381</code>.</td></tr><tr><td>contact</td><td>string</td><td><p>Email or link to reach the contact. Examples:</p><ul><li><code>ec.apps@lightspeedhq.com</code> contact for <code>EMAIL</code> type.</li><li><code>https://www.facebook.com/myshop_page</code> contact for <code>FACEBOOK</code> type.</li></ul></td></tr><tr><td>handle</td><td>string</td><td>Contact identifier on social media. For example, for <code>FACEBOOK</code> type of contact, it's a page slug:<br><br><code>contact</code> field: <code>https://www.facebook.com/myshop_page</code> <br><code>handle</code> field: <code>myshop_page</code></td></tr><tr><td>note</td><td>string</td><td>Store owner's notes on the contact.</td></tr><tr><td>type</td><td>string</td><td><p>Contact type. Customer can have several contacts of the same type.<br><br>One of:</p><p><code>EMAIL</code>, <br><code>PHONE</code>,<br><code>FACEBOOK</code>,<br><code>INSTAGRAM</code>,<br><code>TWITTER</code>,<br><code>YOUTUBE</code>,<br><code>TIKTOK</code>,<br><code>PINTEREST</code>,<br><code>VK</code>,<br><code>FB_MESSENGER</code>,<br><code>WHATSAPP</code>,<br><code>TELEGRAM</code>,<br><code>VIBER</code>,<br><code>URL</code>,<br><code>OTHER</code>.</p></td></tr><tr><td>default</td><td>boolean</td><td>Defines if it's a default customer contact. Only one contact of the same type can be default.</td></tr><tr><td>orderBy</td><td>boolean</td><td>Sorting order for contacts on the customer details page. Starts with <code>0</code> and increments by <code>1</code>.</td></tr><tr><td>timestamp</td><td>string</td><td>Datetime when the customer contact was created.</td></tr></tbody></table>

### Response JSON

A JSON object with the following fields:

| Field       | Type   | Description                                                                                                                                                                                  |
| ----------- | ------ | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| updateCount | number | <p>The number of updated items that defines if the request was successful.<br><br>One of:</p><p><code>1</code> if the item was updated,</p><p><code>0</code> if the item was not updated</p> |


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