The Key Serial Number you use to log into SupraWEB is the serial number of your eKEY or XpressKEY.
eKEY
To locate your eKEY serial number, open the eKEY app on your smartphone. At the top of the screen, you will see either eKEY Basic or eKEY Professional followed by your key serial number.
XpressKEY
The serial number for your XpressKEY is located at the back of your device on a sticker.