Depending on the Carrier associated with the freight bill, the Freight Bill Details may be entered with or without charge level information:
If the Carrier has been configured with the flag Freight Bill Detail Charges Required set to False then the Freight Bill Detail must be entered without charge level information (summary amount only).
If the Carrier has been configured with the flag Freight Bill Detail Charges Required set to True then the Freight Bill Detail must be entered with charge level information (that is, charge details must be specified).