The alternate way to find the correct Sage 50 Serial Number and Activation Key is to purchase a Sage 50 CD drive and retrieve the number from the back of its cover. So now you are aware of the excellent features provided by Sage 50 accounting applications and decided to get one for your business as well. Here is what you should know. Before you start working in your Sage 50 application, it is necessary to first activate the software.
Source: https://www.accountingproblem.com/sage-50-serial-number-activation-key/