I noticed that MM does not respect default values from the back end. Here is a sample: I run the sample application, created new order, created new line item, entered values for product, price and quantity and I left discount blank. When I tried to save I got error message saying that discount can not be null, but on the back end (SQL Server Northwind) that column has a default value of 0. How can I avoid that behaviour and make MM to respect default values from SQL server.

Regrads,
Nick Chakarov