ugpeter

@chrisbottin - I have the same issue (POST requests are being rejected due to authentication failings) and I believe it's due to the construction of the Authorization header. I believe...

Thanks for the response, @chrisbottin. I tried and unfortunately failed to make it work. I post my code here in an effort to determine if I missed something: https://stackoverflow.com/questions/73159810/why-would-my-oauth-post-request-to-twitter-ads-api-fail-while-the-get-request-w