In the TransferChain Drive contact book, there are two types of contacts: Business Contacts and Personal Contacts.
Business Contacts are users you invite to your TransferChain account as part of your organization. These are your company contacts. When you invite someone from your admin panel, and they create their TransferChain account, they will automatically appear in your Business Contacts list.
Personal Contacts, on the other hand, are users who have a TransferChain account but are not part of your company. For example, if you work with a partner company that also uses TransferChain, they can share their TransferChain ID with you. You can then add them to your contact book as a Personal Contact.
Once someone is added to your contact book—whether as a Business or Personal Contact—you can easily invite them to a Space, send Transfers, and message them directly.