Criteria used for the grouping of the price list lines on a same record.
The possible values are: 1=Not defined / 2=Group
Not defined: The record split is carried out only on the line number of a record. On the other hand, the sort order used is Group + S/Group + Product reference.
Group: The record split is carried out on the Group. Within a record, the lines are sorted by S/Group and then by Product reference.