In order to set a requirement of an email address for your secondary registrations, follow these steps:
  1. Select Fundraising > Teamraiser
  2. Click Edit next to your TeamRaiser
  3. Click Select Event Options
  4. Under Relation Actions, click Edit Advanced Options
  5. Click Define Event Options
  6. Under Required Registration Fields, highlight the email field to make this required for secondary registrations
  7. Click Next or Save to save your changes