-                                 qw(parts_id description qty sellprice discount project_id
-                                    serialnumber pricegroup_id ordnumber transdate cusordnumber unit
-                                    base_qty subtotal longdescription lastcost price_factor_id)),
-                            deliverydate => $source_item->reqdate,
-                            fxsellprice  => $source_item->sellprice,);
-  } @{ $source->items_sorted };
-
-  my $i = 0;
-  foreach my $item (@items) {
-    my $source_cvars = $source->items_sorted->[$i]->cvars_by_config;
-    my $target_cvars = $item->cvars_by_config;
-    pairwise { $a->value($b->value) } @{ $target_cvars }, @{ $source_cvars };
-    $i++;
-  }
+                                 qw(parts_id description qty sellprice discount project_id serialnumber pricegroup_id transdate cusordnumber unit
+                                    base_qty longdescription lastcost price_factor_id), @item_columns),
+                             deliverydate     => $source_item->reqdate,
+                             fxsellprice      => $source_item->sellprice,
+                             custom_variables => \@custom_variables,
+                             ordnumber        => ref($item_parent) eq 'SL::DB::Order'         ? $item_parent->ordnumber : $source_item->ordnumber,
+                             donumber         => ref($item_parent) eq 'SL::DB::DeliveryOrder' ? $item_parent->donumber  : $source_item->can('donumber') ? $source_item->donumber : '',
+                           );
+
+  } @{ $items };
+
+  @items = grep { $_->qty * 1 } @items if $params{skip_items_zero_qty};
+  @items = grep { $_->qty >=0 } @items if $params{skip_items_negative_qty};