Custom Domain to avoid third party cookie blocked

I need some help to setup the custom domain to get around of third party cookies blocked.

My app landing page is login.company.app.com.
Should I create a custom domain with auth0.company.app.com OR company.app.com so that Auth0 /authorize endpoint response cookies can be shared with the app endpoint in case third-party cookies are blocked?

Thanks in advance

Hi @ashwani.kumar,

Welcome to the Auth0 Community!

You should create a custom domain with auth.company.app.com.

When configuring a custom domain, you should have the following format:
[subdomain].[second-level-domain].[top-level-domain]

Thanks,
Rueben