A method and system for managing unique COA labels in a build-to-order computer manufacturing environment. In one embodiment, a bar code located on OS back-up media identifies unique COA information for the media. At an early stage of the manufacturing process, a line operator takes a traveler and scans in the order information. At the same time, the operator obtains the OS back-up media for the traveler and scans in the bar code. Once scanned, a COA label having imprinted thereon the COA information is printed and provided to the operator along with a service tag having imprinted thereon the track code for the computer. The service tag and COA label are then affixed to the computer chassis. The manufacturing control system matches the track code with the COA label information that is later downloaded to the hard drive at extended test (“ET”) of the computer. Alternatively, the COA label information may be downloaded to the hard drive of the computer prior to installation of the had drive into the computer. In an alternative embodiment, the preprinted COA labels are retrieved from a secure location, such as a security cabinet, and the information thereon scanned into the system to be associated with the track code.