If you create an account for your clients with the email they provided you, they should NOT log in with Facebook. This WILL create a second account for them, and may cause problems for you. 


The easiest way to have your clients register, would be the following:


  1. Send your clients to your subdomain http://yoursubdomain.fitclients.com (make sure there is no "www." in the URL)
  2. Click on "Create an Account"
  3. Click on "I'd rather sign in with email"
  4. Follow the steps to create an account