[judge2020]

That references "for education", but it's also true for GSuite Business (and enterprise, but not basic). You'll need to be paying for at least 5 users, or $60/month.

[nefitty]

Here's the business info: https://support.google.com/a/answer/6034782

[Dylan16807]

From what I understand the 5 user minimum isn't implemented.