---
title: useEmail
description: |-
  Returns the email address of the buyer that is interacting with the cart.
  The value is `undefined` if the app does not have access to customer data.
api_version: 2023-07
api_name: checkout-ui-extensions
source_url:
  html: >-
    https://shopify.dev/docs/api/checkout-ui-extensions/2023-07/react-hooks/buyer-identity/useemail
  md: >-
    https://shopify.dev/docs/api/checkout-ui-extensions/2023-07/react-hooks/buyer-identity/useemail.md
---

# use​Email

Requires level 2 access to [protected customer data](https://shopify.dev/docs/apps/store/data-protection/protected-customer-data).

Returns the email address of the buyer that is interacting with the cart. The value is `undefined` if the app does not have access to customer data.

## use​Email()

### Returns

* string | undefined

## Related

[APIs - StandardApi](https://shopify.dev/docs/api/checkout-ui-extensions/apis/standardapi)

[APIs - CheckoutApi](https://shopify.dev/docs/api/checkout-ui-extensions/apis/checkoutapi)

[APIs - OrderStatusApi](https://shopify.dev/docs/api/checkout-ui-extensions/apis/orderstatusapi)

[APIs - CartLineItemApi](https://shopify.dev/docs/api/checkout-ui-extensions/apis/cartlineitemapi)

[APIs - PickupPointListApi](https://shopify.dev/docs/api/checkout-ui-extensions/apis/pickuppointlistapi)

[APIs - PickupLocationListApi](https://shopify.dev/docs/api/checkout-ui-extensions/apis/pickuplocationlistapi)

[APIs - ShippingOptionItemApi](https://shopify.dev/docs/api/checkout-ui-extensions/apis/shippingoptionitemapi)

[APIs - ExtensionTargets](https://shopify.dev/docs/api/checkout-ui-extensions/apis/extensiontargets)