Enter Serial No In Shipment Document (SO302000) In Acumatica Using API -

can me following code trying enter shipment mix of serial , non-serial items. error receiving says "px.data.pxexception: error #246: failed commit splits row." have serial allocation can't point out issue coming from.

so302000content so302000 = oscreen.so302000getschema();  oscreen.so302000clear();    so302000.actions.addso.commit = true;  so302000.addsalesorder.selected.linkedcommand = null;  so302000.documentdetails.inventoryid.linkedcommand = null;    list<command> ocmds = new list<command>();    //create header.  ocmds.add(so302000.actions.insert);  ocmds.add(new value { value = scardcode, linkedcommand = so302000.shipmentsummary.customer, commit = true });  ocmds.add(new value { value = scardlocation, linkedcommand = so302000.shipmentsummary.location });  ocmds.add(new value { value = swhscode, linkedcommand = so302000.shipmentsummary.warehouseid });    ocmds.add(so302000.actions.save);    //create lines.  foreach (datarow dr in ds.tables[0].rows)  {    dpackqty = convert.todouble(dr["qtypacked"]);      if (ssonbr == dr["sonbr"].tostring() && sitemcode == dr["itemcode"].tostring())    {      dcount = dcount + 1;    }    else    {      ssonbr = dr["sonbr"].tostring();      sitemcode = dr["itemcode"].tostring().trim();      dcount = 0;        //ocmds.add(new value { value = "ok", linkedcommand = so302000.addsalesorderoperation.servicecommands.dialoganswer, commit = true });      ocmds.add(new value { value = "so", linkedcommand = so302000.addsalesorderoperation.ordertype });      ocmds.add(new value { value = ssonbr, linkedcommand = so302000.addsalesorderoperation.ordernbr });      ocmds.add(new value { value = "ok", linkedcommand = so302000.addsalesorder.servicecommands.dialoganswer, commit = true });      ocmds.add(new key { value = sitemcode, fieldname = so302000.addsalesorder.inventoryid.fieldname, objectname = so302000.addsalesorder.inventoryid.objectname });      ocmds.add(new value { value = "true", linkedcommand = so302000.addsalesorder.selected, commit = true });        ocmds.add(so302000.actions.addso);        ocmds.add(new key { value = "='" + ssonbr + "'", fieldname = so302000.documentdetails.ordernbr.fieldname, objectname = so302000.documentdetails.ordernbr.objectname });      ocmds.add(new key { value = "='" + sitemcode + "'", fieldname = so302000.documentdetails.inventoryid.fieldname, objectname = so302000.documentdetails.inventoryid.objectname });      ocmds.add(new value { value = "0", linkedcommand = so302000.documentdetails.shippedqty, commit = true });    }      if (dr["isserial"].tostring() == "y")    {      ocmds.add(new value { value = "ok", linkedcommand = so302000.allocations.servicecommands.dialoganswer, commit = true });      ocmds.add(new value { value = dcount.tostring(), linkedcommand = so302000.allocations.servicecommands.rownumber, commit = true });    ocmds.add(new value { value = dr["serial"].tostring(), linkedcommand = so302000.allocations.lotserialnbr, commit = true });  ocmds.add(new value { value = dpackqty.tostring(), linkedcommand = so302000.allocations.quantity, commit = true });  }  else  {    ocmds.add(new value { value = "ok", linkedcommand = so302000.allocations.servicecommands.dialoganswer, commit = true });    ocmds.add(new value { value = dpackqty.tostring(), linkedcommand = so302000.allocations.quantity, commit = true });  }    }  ocmds.add(so302000.actions.save);  //ocmds.add(po302000.documentsummary.totalqty);  //ocmds.add(po302000.documentsummary.totalamt);  oscreen.so302000submit(ocmds.toarray());

while trying change code handles non serial item use so302000.documentdetails.shippedqty instead of so302000.allocations.quantity, returns error: "px.data.pxrowpersistingexception: error #4: 'linetype' may not empty." not sure 1 means.

help appreciated :) g

please take look

            content so302000 = context.getschema();         context.clear();          content[] result = context.submit(             new command[]             {                 new value { value = "001043", linkedcommand = so302000.shipmentsummary.shipmentnbr, commit = true },                 new value { value = "000819", linkedcommand = so302000.documentdetails.ordernbr, commit = true},                 new value { value = "ok", linkedcommand = so302000.binlotserialnumbers.servicecommands.dialoganswer, commit = true },                 so302000.binlotserialnumbers.servicecommands.newrow,                 new value { value = "0-_", linkedcommand = so302000.binlotserialnumbers.subitem },                 new value { value = "wr01", linkedcommand = so302000.binlotserialnumbers.location },                 new value { value = "17snr000751", linkedcommand = so302000.binlotserialnumbers.lotserialnbr },                 so302000.actions.lssoshiplinebinlotserial,                 so302000.actions.save             }         );         console.writeline();