Can't access Universal Login or get my applications to use my custom domain

I want to make the application use my custom domain, which I have verified and shows up with the ready status.

The issue could be my application config - the domain is stuck to my old auth0 domain, and I can’t change it to my custom domain

I also want my login box to be available at my custom domain, but it is instead only visible from the old auth0 domain (which doens’t work, because I have GitHub social sign in configured for my custom domain)

Hi @griffinht,

Welcome to the Auth0 Community !

It seems that you have already pointed to the right direction here. If you are using one of our SDKs, please make sure to update the default Auth0 domain with your custom domain in the application settings. This should be the most probable cause of the issue, but otherwise if you have your own integration try deleting the browser cookies to erase all the previous sessions, as mentioned in our Custom Domains documentation as well, then try the login screen once again.

Hope this helps, so you can let me know if that did the trick!
Thanks,
Remus

I’m not using an SDK - I’m specifiacally trying to set up self hosted Talos Omni which requires an auth provider.

When I make a new application in the Auth0 GUI, the domain is set to my auth0 domain, not my custom one (I tried clearing my cookies and using a new browser)

When I hit the “try out the login box” button it takes me to my login box on the old auth0 domain, and signing in with Github doesn’t work (because I have it configured to use my custom domain)

When I try to go to my custom domain, it does redirect me to my application homepage and going to custom_domain.com/login redirects me to my application login page, so that seems fine.

The original issue I was having was a login loop betwen my Omni appliation and Github when trying to sign in, so I could try again and see if things work.

Hi @griffinht,

Unfortunately there is no place in the Auth0 Dashboard that you can set up the custom domain to be used when trying to access your application’s page:

  • from the Try it out - Try your login box button
  • from the application’s settings ( that is why the button is greyed out )

Instead you should create your own /authorize call that includes your custom domain, such as.

As far as the original issue you are describing is concerned, please make sure to update your GitHub OAuth App settings with the correct callback URL, so that now it can point to your custom domain instead, such as:
https://{your-custom-domain}/login/callback.

Hope this helps, and if you have other questions feel free to ask.
Best regards,
Remus

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