KACE Product Support

I am trying to do a massive update for all of our assets, I have split up into smaller asset types. I have also created various csv's containing all of our assets but I am trying to upload our small asset tracking of Mobile Devices. I exported the original file and modified the file and now i am trying to import the assets back into Kace. I am prompted on step 3 of 4 with a "select User Key"  I have only 3 options , User ID, User Name, and Email ID. I have tried all three options but all 78 devices are being rejected. We are on Kace 7.0. I have also exported out the User Table from Kace in attempts to correlate my problem to that but I don't see it. 

Any assistance to that would be great.