Why does AcquireToken with ClientCredential fail with invalid_client (ACS50012)?

Question

Why won\'t my Azure AD application allow an oauth client_credentials grant?

I want to use the Azure Graph API, but first I need an oauth token. To get the token, I am tr

Answer 1

This turned out to be an error in Windows Azure, there was nothing wrong with my code or config.

After Microsoft fixed the problem in Azure, I had to create a new application and it started working.

Forum answer from Microsoft:

Hi,

We are seeing some errors with applications created in a several day time range, ending yesterday. We are continuing to fix up these applications but I don't have a good eta when this will be done. I'm apologize for the impact here.

Can you try creating a new application and retying the operation with the new client id?

thanks