I am developing an app against an Enterprise account that has SSO enabled. When I authenticate, it will accept just my email address if I am already authenticated with Box in my browser session. All looks good, and I get the message via Box "Thanks for logging in"...and that I am free to proceed with my app.
However, when I try to get my auth token, I get the "get_auth_token_error", and the Box documentation doesn't give me any details on this, other than saying it is a generic error state.
I've tested this with a non-enterprise app (which obviously is not SSO), and all works. Note I am v1 of the Box API