Trouble setting admin with google oauth on company's domain

If I set up google auth on a z2jh setup with my personal google account, I can set an admin user by including admin: users: - myemail@gmail.com in config.yaml. However, if I try the same with a z2jh setup in my company’s domain, setting an admin does not seem to work (no admin page on the console).

Here are the auth setups. My company version (doesn’t work):

auth:
  type: google
  google:
    clientId: "..................apps.googleusercontent.com"
    clientSecret: "............."
    callbackUrl: "http://if-jupyter.com/hub/oauth_callback"
    hostedDomain: "mycompany.com"
    loginService: "My Company"
  admin:
    users:
      - me@mycompany.com

Personal account version (works):

auth:
  type: google
  google:
    clientId: "......................apps.googleusercontent.com"
    clientSecret: "................"
    callbackUrl: "http://nl-jupyter.com/hub/oauth_callback"
  admin:
    users:
      - me@gmail.com