Order Importer - Insert M Code Comments
To insert M Code comments into an Invoice or Sales order is a simple matter of including an OrderItem in your import data that has its ProductCode set to = M
Order Importer will detect this and take the appropriate action.
The following fields are required on the OrderItem:
OrderID, Description and ProductCode
The Comment1 and Comment2 fields are also valid on an M Code comment line.
There is no need to define any other OrderItem fields but it will not affect it if you do, the other fields are simply ignored when the ProductCode = M