Configured Custom Domain - What Next?

Our team is answering some frequently asked questions.

I would recommend using the Auth0.js library (Auth0.js v9 Reference - Auth0 Docs). Here is an example to illustrate a possible solution when using a custom domain for a customized UL login page:

var webAuth = new auth0.WebAuth({
  clientID: config.clientID,
  domain: config.auth0Domain,
  ...
  overrides: {
  	__tenant: config.auth0Tenant,
  	__token_issuer: config.authorizationServer.issuer
  },
  ...
});

(Reference: Configure Features to Use Custom Domains - Auth0 Docs)

Here are some more FAQs:
https://community.auth0.com/t/custom-domain-configuration-common-questions/82033

Hope this helps!