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

I was having the same issue but only running the code directly from Azure (inside an Azure Website).

I solved upgrading 'Microsoft.IdentityModel.Clients.ActiveDirectory' package to '2.6.1-alpha'