OAuth 2 API - Error 400

Hi all,

We are trying to setup an OAuth API but are running into issues and I am not sure how to solve it. Can anyone point us in the right direction?

There was an issue setting up your call.

*Raw response for the API *
Status code 400

Thank you!


I struggled with this API for a while myself not so long ago, there are some helpful posts about the potential causes, this one in particular is a good resource: