Using machine-to-machine authentication with a custom domain

Help
1

I’ve set up an application using a custom domain and can successfully authenticate users to it, using the custom domain as the authority.

Now I want to add a machine-to-machine application but that is automatically configured with the auth0 domain and I can’t change it to use the custom domain.

So I can’t support both authentication methods at the same time without disabling issuer verification. Is there any way around this?

2

Hello, @keithfs - welcome to the Auth0 Community!

Machine to machine authentication should work with Custom Domains. What error are you getting when using your Custom Domain for M2M authentication?

3

Hey, thanks for the welcome and the prompt response :slight_smile:

I was double-checking my config as I was composing my reply and it turns out I had a mismatch - my M2M was using the xx.eu.auth0.com authority and my web app was using my custom domain auth.xx.com, so the two types of tokens had different issuers, which makes sense. Once I changed the M2M app to use the custom domain, all was good :+1:

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