We use the 3rd Item number (IMAITM) for all our descriptive stock code in E1. the 2nd Item number (IMLITM) we use for a 9 digit non descriptive numeric number. We would like to have the 3rd number print out on our sales orders. We would like to have it show up as a row under the Description Field. Because the 3rd item is a unique ID we believe it is a good place to use "Descriptive" Part number and still have the ability to improve and change it in the future without affecting the 2nd number that shows up on most of our documentation.