Getting a random error: policy_enforced on most Google Apps when using OAuth 2

Question

Since yesterday (October 2nd, 2014), there seem to be random errors when trying to access apps that use OAuth 2.

There are two problems:

1. We can\'t a

Answer 1

We are getting the same issue on our application. I have tested with using long names for scopes, but it did not help.

Also, it appears that the error only occurs from a Google Apps account. Regular Google account works fine.

The error does not occur for the users who have already given permission to the application.