I am working on implementing Fastlink 2.0 integration for aggregation and IAV for my application. I am able to get the oauth token for both Aggregation and IAV but when I am usi
You need to submit this as an HTML Form post, this is not a REST GET request. This means it will not work if you just append it to the URL and try to get it.
Here is the HTML Form you can replace the respective values-