I have followed all of the steps in the Admin guide to configure Email Configuration with OAUTH.  I can send emails fine, so I know my Azure AD setup, Client ID and Secret are all correct.

I then followed the steps for Administration | Email and Documents | OAuth 2.0 Settings for Importing Contacts and Emails. When I try and Import Emails on a Company record, I get the error messages below.  What's odd is that the error message is telling me to use the "client secret value, not the client secret ID".  So I tried entering the value but I get the same error message.