## Update the Customer's business name

`updateBusinessName(businessName: nullable string)`

Use this method to update the Customer's business name when `name_collection.business.enabled` is `true` on the Checkout Session. If the [Tax ID Element](https://docs.stripe.com/js/custom_checkout/create_tax_id_element.md) is mounted with the business name field shown, calling `confirm()` throws an `IntegrationError` because the Tax ID Element collects the business name directly. To use `updateBusinessName()` instead, set `fields.businessName: "never"` when creating the Tax ID Element.

- `businessName`
  The Customer's business name.

### Example

```title
Update the Customer's business name
```