Enable Applicant Referral Approval
Administration > Manage Site Settings > Referral Settings
Use this option to require admin approval before a referred applicant can begin completing the application form. Be sure to adjust the email template accordingly.
General Settings option:
Yes – The admin must approve the referral before the applicant is notified.
No – No approval is needed. Once the referral form is completed and the email is automatically sent to the applicant, they can begin applying to the application.