A UVID is an eight-digit ID number that is your personal identifier and will give you access to MyUVU, create your employee email, clock you in and out of work, allow you to acquire your UVID card, and award discounts and benefits.You will want to memorize this number. Because this number is crucial to so many things and cannot be assigned until I-9 completion, we stress the importance of completing your I-9 as soon as possible.