my $range_table = ($business ? $business : SL::DB::Default->get)->load(for_update => 1);
my $start_number = $range_table->$number_range_column;
my $range_table = ($business ? $business : SL::DB::Default->get)->load(for_update => 1);
my $start_number = $range_table->$number_range_column;