Auth0 ACUL doesn't allow for customization of `mfa-otp-challenge`

mike.huebner
Tue, 10 Feb 2026 19:31:53 +0000

The auth0 acul screens show mfa-otp-challenge > mfa-otp-challenge.html￼ gives me a file that says this

Customize the Universal Login experience. This requires a custom domain to be configured for the tenant.

Usage:

auth0 acul [parameters…] [flags]

Available Resources:

config Configure Advanced Customizations for Universal Login screens.

init Generate a new ACUL project from a template

screen Manage individual screens for Advanced Customizations for Universal Login.

dev Start development mode for ACUL project with automatic building and asset watching.

Flags:

-h, --help Help for acul.

Global Flags:

  --debug           Enable debug mode.

  --no-color        Disable colors.

  --no-input        Disable interactivity.

  --tenant string   Specific tenant to use. (default "-----")

Use “auth0 acul [command] --help” for more information about a command.