What is the difference between team users and sub-accounts?

Team users are people you invite into your own account, such as a VA, a customer service person, a salesperson or a web designer. They have access to your contacts, sites and everything else in the account, limited by the role you give them. Add them under Settings, then Team users.

A sub-account is its own separate, isolated account. It has no access to anything in your account, and its data is never mixed with other accounts.

When you sign a client, create a sub-account for that client. The client's employees can then be added as team users inside that sub-account. The Founders Plan includes unlimited sub-accounts, and the Professional Plan includes 5.