> ## Documentation Index
> Fetch the complete documentation index at: https://docs-dev-docs-event-stream-action-templates.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.
# EmailIdentifierChallenge
> Describes all the properties and methods available to customize the Universal Login `email-identifier-challenge` screen.
The EmailIdentifierChallenge class implements the `email-identifier-challenge` screen functionality. This screen prompts the user to enter a verification code sent to their email address to confirm their identity.
## Constructors
Create an instance of EmailIdentifierChallenge screen manager:
```typescript Example theme={null}
import EmailIdentifierChallenge from '@auth0/auth0-acul-js/email-identifier-challenge';
const emailIdentifierChallengeManager = new EmailIdentifierChallenge();
await emailIdentifierChallengeManager.submitEmailChallenge({ code: 'your-code' });
```
## Properties
BrandingMembers}>
Provides branding-related configurations, such as branding theme and settings.
ClientMembers}>
Provides client-related configurations, such as `id`, `name`, and `logoUrl`, for the `email-identifier-challenge` screen.
OrganizationMembers}>
Provides information about the user's Organization, such as `id` and `name`.
PromptMembers}>
Contains data about the current prompt in the authentication flow.
ScreenMembersOnEmailIdentifierChallenge}>
Contains details specific to the `email-identifier-challenge` screen, including its configuration and context.
TenantMembers}>
Contains data related to the tenant, such as `id` and associated metadata.
TransactionMembers}>
Provides transaction-specific data for the `email-identifier-challenge` screen, such as active identifiers and flow states.
UntrustedDataMembers}>
Handles untrusted data passed to the SDK, such as user input during the email challenge flow.
UserMembers}>
Details of the active user, including `username`, `email`, and `roles`.
## Methods
This method changes the display language of the Universal Login page.
```typescript Example theme={null}
import EmailIdentifierChallenge from '@auth0/auth0-acul-js/email-identifier-challenge';
const emailIdentifierChallengeManager = new EmailIdentifierChallenge();
emailIdentifierChallengeManager.changeLanguage({
language: 'fr',
});
```
**Method Parameters**
[LanguageChangeOptions](/docs/libraries/acul/js-sdk/Screens/interfaces/LanguageChangeOptions).
The locale code for the desired language (for example, `'en'`, `'fr'`, `'es'`).
When set to `'session'`, the selected language persists for the duration of the session.
Error[]}>
This method retrieves the array of transaction errors from the context, or an empty array if none exist.
This method resends the verification code to the user's email address.
```typescript Example theme={null}
import EmailIdentifierChallenge from '@auth0/auth0-acul-js/email-identifier-challenge';
const emailIdentifierChallengeManager = new EmailIdentifierChallenge();
await emailIdentifierChallengeManager.resendCode();
```
ResendControl}>
This method provides resend functionality with timeout management. It returns a [`ResendControl`](/docs/libraries/acul/js-sdk/Screens/interfaces/ResendControl) object with a `startResend()` method that triggers the resend and enforces a cooldown period before the user can resend again.
```typescript Example theme={null}
import EmailIdentifierChallenge from '@auth0/auth0-acul-js/email-identifier-challenge';
const emailIdentifierChallengeManager = new EmailIdentifierChallenge();
const { startResend } = emailIdentifierChallengeManager.resendManager({
timeoutSeconds: 15,
});
await startResend();
```
**Method Parameters**
[StartResendOptions](/docs/libraries/acul/js-sdk/Screens/interfaces/StartResendOptions).
The cooldown duration in seconds before the user can resend the code again.
OnStatusChangeCallback}>
Callback invoked whenever the resend status changes, it returns the remaining seconds and if the resend functionality is currently disabled.
Callback invoked when the cooldown expires and resend becomes available again.
This method navigates the user back to the previous screen.
```typescript Example theme={null}
import EmailIdentifierChallenge from '@auth0/auth0-acul-js/email-identifier-challenge';
const emailIdentifierChallengeManager = new EmailIdentifierChallenge();
await emailIdentifierChallengeManager.returnToPrevious();
```
This method submits the email verification code to complete the challenge.
```typescript Example theme={null}
import EmailIdentifierChallenge from '@auth0/auth0-acul-js/email-identifier-challenge';
const emailIdentifierChallengeManager = new EmailIdentifierChallenge();
await emailIdentifierChallengeManager.submitEmailChallenge({ code: 'your-code' });
```
**Method Parameters**
[EmailChallengeOptions](/docs/libraries/acul/js-sdk/Screens/interfaces/EmailChallengeOptions).
The verification code sent to the user's email address.
The CAPTCHA response token, if CAPTCHA is enabled for this tenant.