Before attempting activation, identify which "generation" of the plugin you own: 16-Digit Codes (Modern): These look like 1234-5678-9012-3456 and are typically used with the inMusic Software Center 30-Digit/Alphanumeric Codes (Legacy): These are specifically for the iLok License Manager
There are a few ways to obtain an Xpand 2 activation code: xpand 2 activation code