Had the same problem because i used clientKeyId. But i only was able to see oauthClientId after adding ACT_AS_USER in the scope as you suggested and it worked!
+1 for this.
Thanks @greg.russon!
Had the same problem because i used clientKeyId. But i only was able to see oauthClientId after adding ACT_AS_USER in the scope as you suggested and it worked!
+1 for this.
Thanks @greg.russon!
How do i get the oauthClientId, is this not the app client id that we see on the dev account?