An unlimited number of users can be invited to your team, though only a select number can be permissioned editors or administrators, which will depend on your Overyield subscription.
To invite a new user to your team:
Navigate to the Homescreen → Teams Menu → Team Members.
Enter the user’s email address
Assign the appropriate permissions.
Click Add Member
From here, the individual will receive an email invitation to create their Overyield account.