MID (Manufacturer's Identification Number) US Customs requirement


according to a US customs requirement, we have to maintain somewhere (prefer vendor master) the Manufacturers Identification Number (MID). This number is up to 15 characters, numbers long.

Unfortunately I did'nt found any possibility to set this number in the system. As far as I know this MID are used only in South Carolina USA. There is a fild in LFA1-EMNFR, but it is to short.

Have someone any idea where and how to ingegrate this number in SAP ERP release 6.0?

Thanks in Avance,

Michael Hoerner