We have an application that regularly pulls call log information using the API, The app is set as Private and is in production.
Our application had been running correctly from November until April using the password flow and suddenly it stopped working. When I try to use any REST client to send the oAuth request I get back "Unsupported grant type", which I believe is different than "Unauthorized for this grant type".
The body that we send looks like "username={Username}&password={Password}&grant_type=password" just for example purposes.
Any idea why this is happening?