PIN (up to 10):
Required to complete test, any alphanumeric string
Message (up to 128 chars):
Sent with each test result display available by email and text (click on button in result display will prompt login dialog if not signed in and send message.)
Value Code (up to 128 chars):
Behaves same as message, typically sends a link to a download page, 2D barcode, unlock code to activate features, Coupon Code...
Customize (up to 128 chars):
Link to web page with data entry fields, check boxes, radio buttons to customize products, shipping and handle payment process