You are required to provide the MID (Manufacturers Identification Code) code on export invoices.
#Select Manufacturer record, enter MID Code and click [Save]
From HOME PAGE. select MANUFACTURER and enter MID CODE in relevant record#Select [Update MID Code on Products] to update all existing Products
The MID code will then pull through to products on DUTY and EXPORT invoices.
#Finding MID Codes - First ask your Manufacturer for their MID code
#If they cannot give you one, you can make one yourself following instructions from the US Customs and Excise website ...see link below
US Customs and Excise - Rules for Constructing the MID