The product number that will be used to insert freight lines into the order.

All of the following conditions apply to this setting:

The default value will be empty

The setting will store a Short Item Number

The setting value is required

The setting cannot be reset to empty

The setting verifies SPC (Premier.Commerce, Freight)

Please note that this setting should not change during the sales order process.  Changing of this setting in the midst of the process could result in unexpected behavior.