The location of your serial number depends on how you acquired the software:
Melodyne uses a "Challenge-Response" system to prevent piracy. Entering the serial number is only the first step: melodyne serial number
Celemony generally allows a single serial number to be activated on two computers simultaneously , provided you are the primary user of both machines. This allows producers to have a studio desktop and a travel laptop activated at the same time. If you try to activate a third machine, you will be blocked until you deactivate one of the previous installations. The location of your serial number depends on
This number is not just a "password" to open the software; it is the key that communicates with Celemony’s servers to authorize the plugin on your specific machine. melodyne serial number