You can adjust the registration limits for your program from Settings > Registration > Registration limit.
Choose between allowing Multiple registration per registration or One application per registration.
If you choose the Multiple registration per registration option you can set the maximum number of applications that can be registered per registration in the Application limit per registration field.
You can also set the maximum number of applications that can be registered in a specific category per registration by opening the category.
Important: Keep in mind that the same email can be used only once to register for the program. If someone tries to register again with the same email, the system will notify them that the email is already in use and direct them towards their existing registration.