During Discovery, the serial number types are searched for in the following order: system, chassis, UUID, and baseboard. The first one that has a value that is valid (not in the Invalid Serial Number table) is populated on the form. All of the Discovered Serial Number types are populated in the Serial Number table [cmdb_serial_number]. More details in the following community article:
Diving Into Serial Numbers...Diving Into Serial Numbers...
For example, during the discovery of this workstation, 4 serial numbers were found and updated in the Serial Number table [cmdb_serial_number].
Since the system serial number type was the first valid one found it is populated on the form.
