Thanks for the context @kevin21 !
That’s a good clue - with a custom email provider configured, there is an option to customize email templates, also using a liquid syntax via our Management API (a liquid syntax allows using common variables to send email templates in the context of a specific user / application / etc.)
Alright! If you can’t localize this template code in the Auth0 dashboard → Branding → [Choose a specific template] → Message window, let’s please try fetching all customized email templates via the Management API: Auth0 Management API v2
PS: You should get 404 if a specific email template has not been customized.
PS2: Different email template after enabling custom email provider - #4 by lihua.zhang
Please let us know if the Management API has returned the specific template code, otherwise, we will be looking into it further! 