My app is configured to use PKCE for client authentication and I’m trying to use Postman to get a new access token but it’s coming back with:
Error: Cannot supply multiple client credentials. Use one of the following: credentials in the Authorization header, credentials in the post body, or a client_assertion in the post body.
I’m seeing the
Authorization header being set in the
POST https://dev-587152.okta.com/oauth2/default/v1/token call. In the body, I’m seeing
client_id being set. I’m not seeing
client_assertion being set in the body.
What can be done so Postman is able to get a new access token?