Use of OM: Invoice Numbering Method profile to group invoice lines

We have an issue in that during shipping they split the same SO line into separate LPNs based on # of units per pallet.  So this creates multiple LPN's in the DSNO and INO EDI files.  Select customers want to see the entire quantity rolled up into one line for same part number and same SO Line number.  We found the subject profile option and attempted to ship and invoice based on this scenario.  It did not change the DSNO output, as expected.  However autoinvoice did create one line in ra_interface_lines_all which looked correct, but after running diagnostics, it has