Ankit Parekh
I tried a lot with adding/removing various parameters as mentioned in okta documentation but none worked and getting 401 unauthorized.
As per okta documentation for PKCE auth type, one need to use client_assertion and client_assertion_type, I also did that but still no luck. I have posted my concerns to okta team and they are looking into that.
Meanwhile if possible, can you post exact request parameters to hit “/oauth2/v1/token”, that will really help.