Tracking individual serial numbers is hard work. It costs you money in time and frustration, and the hassle is easily avoided.
If you manage a creative team with even a few designers, please, please, take advantage of Adobe’s Volume Licensing program when you purchase Adobe software and upgrades. Just call Adobe’s volume licensing service at 800-443-8158, or visit the website to easily break the cycle of serial number management in your studio.
Link: Adobe Volume Licensing