Click Setup >> Codes >> Line Codes. 
Enter a Code and Desc >> click Update.
Code: One to three digits that identify a code within the program. (Example: AAA)
Desc: A description of the line code. (Example: Default Part)
Note: Line Codes are three digits long, and can include letters and numbers.
Examples: AutoZone (AZO), Dayco (DAY), Mobil (MOB).
