Your clients information is added to the Clients page (found by going to Studio & Clients » Clients > Clients in the following ways:
When a Questionnaire is responded to.
When a Session is booked.
When an inquiry is submitted through the Booking leads page.
When a Contract is signed. The name and email address is added.
When an Invoice is paid. The name, email address and client address is added.
You can also manually add the clients information by clicking the Add New Client button at the top of the Clients page.