You can invite new team members to your Garba workspace directly from the account settings.
Go to Settings → Account → Users → Invite user
Enter the following:
Name
Email address
Time zone
Role (User, Manager, Admin)
Team assignment
The user will receive an e-mail in their inbox with the invite. However, they do not need to wait for this. Once invited, they can head straight to https://app.garba.ai and use the appropriate SSO-login method to login to their account.