Google Directory API - 403 [Not Authorized to access this resource/api] on one machine, works on another

Question

I've been testing my authorization code and suddenly I started to get:

Not Authorized to access this resource/api [403]
Errors [
    Message[Not Authorized to access this resource/api] Location[ - ] Reason[forbidden] Domain[global]
]

I scratched my head and tried a few things but I didn't think I'd changed anything. Eventually I tried running it on a different machine. It worked without error.

I'm using v1.6 of the Google Directory API .NET Client. I've been working on this for a while. I had service authorization working and was working on client authorization when I experienced the issue. I'm currently getting the same error when I try authorizing with service creds. I'm not currently in a position to check if that process still works on the other machine.

Any ideas?

EDIT

I'm using the same ClientId on the two machines.

Answer 1

I was getting a 403 error as well. I resolved it by correcting the permissions. I had the project setup into Google under [email protected]:

1. I had to login as our super user into Gmail
2. search for user xyz
3. I selected the user, then pressed Show more
4. I clicked on 0 Admin roles and privileges
5. enabled "User Management" since I was trying to pull a list of users

And the error went away.