I'm attempting to connect poll some information via OpenAPI using "Authorization Code" mode, and no redirect URL.

I am able to successfully obtain both a csrfToken, and authorization code. However when I attempt to use the authorization code with the Client ID and Client Secret shown under Platform Integration, I always get an "Error -44106 The Client Id Or Client Secret is Invalid." response.

I've tried pretty much every option, to include deleting and recreating the application in Platform Integration.

Has anyone else ran into this issue? Any assistance would be appreciated.