Hi,
Put breakpoint in "If objCFLEvent.ChooseFromListUID = "CFL_OINS" Then"
Then kindly check the value of "objDataTable.GetValue("internalSN", 0)" in msgbox. Also, I much prefer "txtoldSerN.Value" instead of "ObjForm.Items.Item("txtoldSerN").Specific.Value"
Regards,
Bry