Mehr Frieden -General Kyrylo Budanov:
[kivitendo-erp.git] / SL / IS.pm
index cc3ce37..fdc70ab 100644 (file)
--- a/SL/IS.pm
+++ b/SL/IS.pm
@@ -25,7 +25,8 @@
 # GNU General Public License for more details.
 # You should have received a copy of the GNU General Public License
 # along with this program; if not, write to the Free Software
-# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+# MA 02110-1335, USA.
 #======================================================================
 #
 # Inventory invoicing module
 
 package IS;
 
-use List::Util qw(max);
+use List::Util qw(max sum0);
+use List::MoreUtils qw(any);
 
+use Carp;
 use SL::AM;
 use SL::ARAP;
 use SL::CVar;
@@ -49,17 +52,26 @@ use SL::MoreCommon;
 use SL::IC;
 use SL::IO;
 use SL::TransNumber;
+use SL::DB::Chart;
 use SL::DB::Default;
+use SL::DB::Draft;
 use SL::DB::Tax;
 use SL::DB::TaxZone;
 use SL::TransNumber;
+use SL::DB;
+use SL::Presenter::Part qw(type_abbreviation classification_abbreviation);
 use Data::Dumper;
 
 use strict;
+use constant PCLASS_OK             =>   0;
+use constant PCLASS_NOTFORSALE     =>   1;
+use constant PCLASS_NOTFORPURCHASE =>   2;
 
 sub invoice_details {
   $main::lxdebug->enter_sub();
 
+  # prepare invoice for printing
+
   my ($self, $myconfig, $form, $locale) = @_;
 
   $form->{duedate} ||= $form->{invdate};
@@ -68,9 +80,6 @@ sub invoice_details {
   my $dbh = $form->get_standard_dbh;
   my $sth;
 
-  my $query = qq|SELECT date | . conv_dateq($form->{duedate}) . qq| - date | . conv_dateq($form->{invdate}) . qq| AS terms|;
-  ($form->{terms}) = selectrow_query($form, $dbh, $query);
-
   my (@project_ids);
   $form->{TEMPLATE_ARRAYS} = {};
 
@@ -144,43 +153,122 @@ sub invoice_details {
 
   $form->{discount} = [];
 
-  IC->prepare_parts_for_printing(myconfig => $myconfig, form => $form);
+  # get some values of parts from db on store them in extra array,
+  # so that they can be sorted in later
+  my %prepared_template_arrays = IC->prepare_parts_for_printing(myconfig => $myconfig, form => $form);
+  my @prepared_arrays          = keys %prepared_template_arrays;
+  my @separate_totals          = qw(non_separate_subtotal);
 
   my $ic_cvar_configs = CVar->get_configs(module => 'IC');
   my $project_cvar_configs = CVar->get_configs(module => 'Projects');
 
   my @arrays =
-    qw(runningnumber number description longdescription qty ship unit bin
-       deliverydate_oe ordnumber_oe donumber_do transdate_oe validuntil
-       partnotes serialnumber reqdate sellprice listprice netprice
-       discount p_discount discount_sub nodiscount_sub
-       linetotal  nodiscount_linetotal tax_rate projectnumber projectdescription
-       price_factor price_factor_name partsgroup weight lineweight);
+    qw(runningnumber number description longdescription qty qty_nofmt unit bin
+       deliverydate_oe ordnumber_oe donumber_do transdate_oe invnumber invdate
+       partnotes serialnumber reqdate sellprice sellprice_nofmt listprice listprice_nofmt netprice netprice_nofmt
+       discount discount_nofmt p_discount discount_sub discount_sub_nofmt nodiscount_sub nodiscount_sub_nofmt
+       linetotal linetotal_nofmt nodiscount_linetotal nodiscount_linetotal_nofmt tax_rate projectnumber projectdescription
+       price_factor price_factor_name partsgroup weight weight_nofmt lineweight lineweight_nofmt);
 
   push @arrays, map { "ic_cvar_$_->{name}" } @{ $ic_cvar_configs };
   push @arrays, map { "project_cvar_$_->{name}" } @{ $project_cvar_configs };
 
-  my @tax_arrays = qw(taxbase tax taxdescription taxrate taxnumber);
+  my @tax_arrays = qw(taxbase tax taxdescription taxrate taxnumber tax_id);
 
   my @payment_arrays = qw(payment paymentaccount paymentdate paymentsource paymentmemo);
 
-  map { $form->{TEMPLATE_ARRAYS}->{$_} = [] } (@arrays, @tax_arrays, @payment_arrays);
+  my @invoices_for_advance_payment_arrays = qw(iap_invnumber iap_transdate
+                                               iap_amount iap_amount_nofmt
+                                               iap_taxamount iap_taxamount_nofmt
+                                               iap_open_amount iap_open_amount_nofmt
+                                               iap_netamount);
+
+  map { $form->{TEMPLATE_ARRAYS}->{$_} = [] } (@arrays, @tax_arrays, @payment_arrays, @prepared_arrays, @invoices_for_advance_payment_arrays);
 
   my $totalweight = 0;
   foreach $item (sort { $a->[1] cmp $b->[1] } @partsgroup) {
     $i = $item->[0];
 
     if ($item->[1] ne $sameitem) {
+      push(@{ $form->{TEMPLATE_ARRAYS}->{entry_type}  }, 'partsgroup');
       push(@{ $form->{TEMPLATE_ARRAYS}->{description} }, qq|$item->[1]|);
       $sameitem = $item->[1];
 
-      map({ push(@{ $form->{TEMPLATE_ARRAYS}->{$_} }, "") } grep({ $_ ne "description" } @arrays));
+      map({ push(@{ $form->{TEMPLATE_ARRAYS}->{$_} }, "") } grep({ $_ ne "description" } (@arrays, @prepared_arrays)));
     }
 
     $form->{"qty_$i"} = $form->parse_amount($myconfig, $form->{"qty_$i"});
 
     if ($form->{"id_$i"} != 0) {
 
+      # Prepare linked items for printing
+      if ( $form->{"invoice_id_$i"} ) {
+
+        require SL::DB::InvoiceItem;
+        my $invoice_item = SL::DB::Manager::InvoiceItem->find_by( id => $form->{"invoice_id_$i"} );
+        my $linkeditems  = $invoice_item->linked_records( direction => 'from', recursive => 1 );
+
+        # check for (recursively) linked sales quotation items, sales order
+        # items and sales delivery order items.
+
+        # The checks for $form->{"ordnumber_$i"} and quo and do are for the old
+        # behaviour, where this data was stored in its own database fields in
+        # the invoice items, and there were no record links for the items.
+
+        # If this information were to be fetched in retrieve_invoice, e.g. for showing
+        # this information in the second row, then these fields will already have
+        # been set and won't be calculated again. This shouldn't be done there
+        # though, as each invocation creates several database calls per item, and would
+        # make the interface very slow for many items. So currently these
+        # requests are only made when printing the record.
+
+        # When using the workflow an invoice item can only be (recursively) linked to at
+        # most one sales quotation item and at most one delivery order item.  But it may
+        # be linked back to several order items, if collective orders were involved. If
+        # that is the case we will always choose the very first order item from the
+        # original order, i.e. where it first appeared in an order.
+
+        # TODO: credit note items aren't checked for a record link to their
+        # invoice item
+
+        unless ( $form->{"ordnumber_$i"} ) {
+
+          # $form->{"ordnumber_$i"} comes from ordnumber in invoice, if an
+          # entry exists this must be from before the change from ordnumber to linked items.
+          # So we just use that value and don't check for linked items.
+          # In that case there won't be any links for quo or do items either
+
+          # sales order items are fetched and sorted by id, the lowest id is first
+          # It is assumed that the id always grows, so the item we want (the original) will have the lowest id
+          # better solution: filter the order_item that doesn't have any links from other order_items
+          #                  or maybe fetch linked_records with param save_path and order by _record_length_depth
+          my @linked_orderitems = grep { $_->isa("SL::DB::OrderItem") && $_->record->type eq 'sales_order' } @{$linkeditems};
+          if ( scalar @linked_orderitems ) {
+            @linked_orderitems = sort { $a->id <=> $b->id } @linked_orderitems;
+            my $orderitem = $linked_orderitems[0]; # 0: the original order item, -1: the last collective order item
+
+            $form->{"ordnumber_$i"}       = $orderitem->record->record_number;
+            $form->{"transdate_oe_$i"}    = $orderitem->record->transdate->to_kivitendo;
+            $form->{"cusordnumber_oe_$i"} = $orderitem->record->cusordnumber;
+          };
+
+          my @linked_quoitems = grep { $_->isa("SL::DB::OrderItem") && $_->record->type eq 'sales_quotation' } @{$linkeditems};
+          if ( scalar @linked_quoitems ) {
+            croak "an invoice item may only be linked back to 1 sales quotation item, something is wrong\n" unless scalar @linked_quoitems == 1;
+            $form->{"quonumber_$i"}     = $linked_quoitems[0]->record->record_number;
+            $form->{"transdate_quo_$i"} = $linked_quoitems[0]->record->transdate->to_kivitendo;
+          };
+
+          my @linked_deliveryorderitems = grep { $_->isa("SL::DB::DeliveryOrderItem") && $_->record->type eq 'sales_delivery_order' } @{$linkeditems};
+          if ( scalar @linked_deliveryorderitems ) {
+            croak "an invoice item may only be linked back to 1 sales delivery item, something is wrong\n" unless scalar @linked_deliveryorderitems == 1;
+            $form->{"donumber_$i"}     = $linked_deliveryorderitems[0]->record->record_number;
+            $form->{"transdate_do_$i"} = $linked_deliveryorderitems[0]->record->transdate->to_kivitendo;
+          };
+        };
+      };
+
+
       # add number, description and qty to $form->{number},
       if ($form->{"subtotal_$i"} && !$subtotal_header) {
         $subtotal_header = $i;
@@ -198,6 +286,9 @@ sub invoice_details {
 
       my $price_factor = $price_factors{$form->{"price_factor_id_$i"}} || { 'factor' => 1 };
 
+      push(@{ $form->{TEMPLATE_ARRAYS}->{$_} },                $prepared_template_arrays{$_}[$i - 1]) for @prepared_arrays;
+
+      push @{ $form->{TEMPLATE_ARRAYS}->{entry_type} },        'normal';
       push @{ $form->{TEMPLATE_ARRAYS}->{runningnumber} },     $position;
       push @{ $form->{TEMPLATE_ARRAYS}->{number} },            $form->{"partnumber_$i"};
       push @{ $form->{TEMPLATE_ARRAYS}->{serialnumber} },      $form->{"serialnumber_$i"};
@@ -211,16 +302,23 @@ sub invoice_details {
       push @{ $form->{TEMPLATE_ARRAYS}->{deliverydate_oe} },   $form->{"reqdate_$i"};
       push @{ $form->{TEMPLATE_ARRAYS}->{sellprice} },         $form->{"sellprice_$i"};
       push @{ $form->{TEMPLATE_ARRAYS}->{sellprice_nofmt} },   $form->parse_amount($myconfig, $form->{"sellprice_$i"});
+      # linked item print variables
+      push @{ $form->{TEMPLATE_ARRAYS}->{quonumber_quo} },     $form->{"quonumber_$i"};
+      push @{ $form->{TEMPLATE_ARRAYS}->{transdate_quo} },     $form->{"transdate_quo_$i"};
       push @{ $form->{TEMPLATE_ARRAYS}->{ordnumber_oe} },      $form->{"ordnumber_$i"};
+      push @{ $form->{TEMPLATE_ARRAYS}->{transdate_oe} },      $form->{"transdate_oe_$i"};
+      push @{ $form->{TEMPLATE_ARRAYS}->{cusordnumber_oe} },   $form->{"cusordnumber_oe_$i"};
       push @{ $form->{TEMPLATE_ARRAYS}->{donumber_do} },       $form->{"donumber_$i"};
-      push @{ $form->{TEMPLATE_ARRAYS}->{transdate_oe} },      $form->{"transdate_$i"};
+      push @{ $form->{TEMPLATE_ARRAYS}->{transdate_do} },      $form->{"transdate_do_$i"};
+
       push @{ $form->{TEMPLATE_ARRAYS}->{invnumber} },         $form->{"invnumber"};
       push @{ $form->{TEMPLATE_ARRAYS}->{invdate} },           $form->{"invdate"};
       push @{ $form->{TEMPLATE_ARRAYS}->{price_factor} },      $price_factor->{formatted_factor};
       push @{ $form->{TEMPLATE_ARRAYS}->{price_factor_name} }, $price_factor->{description};
       push @{ $form->{TEMPLATE_ARRAYS}->{partsgroup} },        $form->{"partsgroup_$i"};
       push @{ $form->{TEMPLATE_ARRAYS}->{reqdate} },           $form->{"reqdate_$i"};
-      push(@{ $form->{TEMPLATE_ARRAYS}->{listprice} },         $form->{"listprice_$i"});
+      push @{ $form->{TEMPLATE_ARRAYS}->{listprice} },         $form->format_amount($myconfig, $form->{"listprice_$i"}, 2);
+      push(@{ $form->{TEMPLATE_ARRAYS}->{listprice_nofmt} },   $form->{"listprice_$i"});
 
       my $sellprice     = $form->parse_amount($myconfig, $form->{"sellprice_$i"});
       my ($dec)         = ($sellprice =~ /\.(\d+)/);
@@ -249,6 +347,17 @@ sub invoice_details {
       push @{ $form->{TEMPLATE_ARRAYS}->{discount_nofmt} }, ($discount != 0) ? $discount * -1 : '';
       push @{ $form->{TEMPLATE_ARRAYS}->{p_discount} },     $form->{"discount_$i"};
 
+      if ( $prepared_template_arrays{separate}[$i - 1]  ) {
+        my $pabbr = $prepared_template_arrays{separate}[$i - 1];
+        if ( ! $form->{"separate_${pabbr}_subtotal"} ) {
+            push @separate_totals , "separate_${pabbr}_subtotal";
+            $form->{"separate_${pabbr}_subtotal"} = 0;
+        }
+        $form->{"separate_${pabbr}_subtotal"} += $linetotal;
+      } else {
+        $form->{non_separate_subtotal} += $linetotal;
+      }
+
       $form->{total}            += $linetotal;
       $form->{nodiscount_total} += $nodiscount_linetotal;
       $form->{discount_total}   += $discount;
@@ -334,19 +443,19 @@ sub invoice_details {
       }
       my $tax_rate = $taxrate * 100;
       push(@{ $form->{TEMPLATE_ARRAYS}->{tax_rate} }, qq|$tax_rate|);
-      if ($form->{"assembly_$i"}) {
+      if ($form->{"part_type_$i"} eq 'assembly') {
         $sameitem = "";
 
         # get parts and push them onto the stack
         my $sortorder = "";
         if ($form->{groupitems}) {
           $sortorder =
-            qq|ORDER BY pg.partsgroup, a.oid|;
+            qq|ORDER BY pg.partsgroup, a.position|;
         } else {
-          $sortorder = qq|ORDER BY a.oid|;
+          $sortorder = qq|ORDER BY a.position|;
         }
 
-        $query =
+        my $query =
           qq|SELECT p.partnumber, p.description, p.unit, a.qty, pg.partsgroup
              FROM assembly a
              JOIN parts p ON (a.parts_id = p.id)
@@ -356,18 +465,20 @@ sub invoice_details {
 
         while (my $ref = $sth->fetchrow_hashref('NAME_lc')) {
           if ($form->{groupitems} && $ref->{partsgroup} ne $sameitem) {
-            map({ push(@{ $form->{TEMPLATE_ARRAYS}->{$_} }, "") } grep({ $_ ne "description" } @arrays));
+            map({ push(@{ $form->{TEMPLATE_ARRAYS}->{$_} }, "") } grep({ $_ ne "description" } (@arrays, @prepared_arrays)));
             $sameitem = ($ref->{partsgroup}) ? $ref->{partsgroup} : "--";
+            push(@{ $form->{TEMPLATE_ARRAYS}->{entry_type}  }, 'assembly-item-partsgroup');
             push(@{ $form->{TEMPLATE_ARRAYS}->{description} }, $sameitem);
           }
 
           map { $form->{"a_$_"} = $ref->{$_} } qw(partnumber description);
 
+          push(@{ $form->{TEMPLATE_ARRAYS}->{entry_type}  }, 'assembly-item');
           push(@{ $form->{TEMPLATE_ARRAYS}->{description} },
                $form->format_amount($myconfig, $ref->{qty} * $form->{"qty_$i"}
                  )
                  . qq| -- $form->{"a_partnumber"}, $form->{"a_description"}|);
-          map({ push(@{ $form->{TEMPLATE_ARRAYS}->{$_} }, "") } grep({ $_ ne "description" } @arrays));
+          map({ push(@{ $form->{TEMPLATE_ARRAYS}->{$_} }, "") } grep({ $_ ne "description" } (@arrays, @prepared_arrays)));
 
         }
         $sth->finish;
@@ -402,10 +513,25 @@ sub invoice_details {
     push(@{ $form->{TEMPLATE_ARRAYS}->{taxrate} },        $form->format_amount($myconfig, $form->{"${item}_rate"} * 100));
     push(@{ $form->{TEMPLATE_ARRAYS}->{taxrate_nofmt} },  $form->{"${item}_rate"} * 100);
     push(@{ $form->{TEMPLATE_ARRAYS}->{taxnumber} },      $form->{"${item}_taxnumber"});
+    push(@{ $form->{TEMPLATE_ARRAYS}->{tax_id} },         $form->{"${item}_tax_id"});
+
+    # taxnumber (= accno) is used for grouping the amounts of the various taxes and as a prefix in form
+
+    # This code used to assume that at most one tax entry can point to the same
+    # chart_id, even though chart_id does not have a unique constraint!
+
+    # This chart_id was then looked up via its accno, which is the key that is
+    # used to group the different taxes by for a record
+
+    # As we now also store the tax_id we can use that to look up the tax
+    # instead, this is only done here to get the (translated) taxdescription.
+
+    if ( $form->{"${item}_tax_id"} ) {
+      my $tax_obj = SL::DB::Manager::Tax->find_by(id => $form->{"${item}_tax_id"}) or die "Can't find tax with id " . $form->{"${item}_tax_id"};
+      my $description = $tax_obj ? $tax_obj->translated_attribute('taxdescription',  $form->{language_id}, 0) : '';
+      push(@{ $form->{TEMPLATE_ARRAYS}->{taxdescription} }, $description . q{ } . 100 * $form->{"${item}_rate"} . q{%});
+    }
 
-    my $tax_obj     = SL::DB::Manager::Tax->find_by(taxnumber => $form->{"${item}_taxnumber"});
-    my $description = $tax_obj ? $tax_obj->translated_attribute('taxdescription',  $form->{language_id}, 0) : '';
-    push(@{ $form->{TEMPLATE_ARRAYS}->{taxdescription} }, $description . q{ } . 100 * $form->{"${item}_rate"} . q{%});
   }
 
   for my $i (1 .. $form->{paidaccounts}) {
@@ -435,34 +561,66 @@ sub invoice_details {
   $form->{nodiscount}          = $form->format_amount($myconfig, $nodiscount, 2);
   $form->{yesdiscount}         = $form->format_amount($myconfig, $form->{nodiscount_total} - $nodiscount, 2);
 
-  $form->{invtotal} = ($form->{taxincluded}) ? $form->{total} : $form->{total} + $tax;
-  $form->{total}    = $form->format_amount($myconfig, $form->{invtotal} - $form->{paid}, 2);
+  my $grossamount = ($form->{taxincluded}) ? $form->{total} : $form->{total} + $tax;
+  $form->{invtotal} = $form->round_amount($grossamount, 2, 1);
+  $form->{rounding} = $form->round_amount(
+    $form->{invtotal} - $form->round_amount($grossamount, 2),
+    2
+  );
+
+  $form->{rounding_nofmt} = $form->{rounding};
+  $form->{total_nofmt}    = $form->{total};
+  $form->{invtotal_nofmt} = $form->{invtotal};
+  $form->{paid_nofmt}     = $form->{paid};
 
+  $form->{rounding} = $form->format_amount($myconfig, $form->{rounding}, 2);
+  $form->{total}    = $form->format_amount($myconfig, $form->{invtotal} - $form->{paid}, 2);
   $form->{invtotal} = $form->format_amount($myconfig, $form->{invtotal}, 2);
   $form->{paid}     = $form->format_amount($myconfig, $form->{paid}, 2);
 
-  $form->set_payment_options($myconfig, $form->{invdate});
+  $form->set_payment_options($myconfig, $form->{invdate}, 'sales_invoice');
 
+  $form->{department}    = SL::DB::Manager::Department->find_by(id => $form->{department_id})->description if $form->{department_id};
   $form->{delivery_term} = SL::DB::Manager::DeliveryTerm->find_by(id => $form->{delivery_term_id} || undef);
   $form->{delivery_term}->description_long($form->{delivery_term}->translated_attribute('description_long', $form->{language_id})) if $form->{delivery_term} && $form->{language_id};
 
   $form->{username} = $myconfig->{name};
+  $form->{$_} = $form->format_amount($myconfig, $form->{$_}, 2) for @separate_totals;
+
+  my $id_for_iap = $form->{convert_from_oe_ids} || $form->{convert_from_ar_ids} || $form->{id};
+  my $from_order = !!$form->{convert_from_oe_ids};
+  foreach my $invoice_for_advance_payment (@{$self->_get_invoices_for_advance_payment($id_for_iap, $from_order)}) {
+    # Collect VAT of invoices for advance payment.
+    # Set sellprices to fxsellprices for items, because
+    # the PriceTaxCalculator sets fxsellprice from sellprice before calculating.
+    $_->sellprice($_->fxsellprice) for @{$invoice_for_advance_payment->items};
+    my %pat       = $invoice_for_advance_payment->calculate_prices_and_taxes;
+    my $taxamount = sum0 values %{ $pat{taxes_by_tax_id} };
+
+    push(@{ $form->{TEMPLATE_ARRAYS}->{"iap_$_"} },                $invoice_for_advance_payment->$_) for qw(invnumber transdate);
+    push(@{ $form->{TEMPLATE_ARRAYS}->{"iap_amount_nofmt"} },      $invoice_for_advance_payment->amount);
+    push(@{ $form->{TEMPLATE_ARRAYS}->{"iap_amount"} },            $invoice_for_advance_payment->amount_as_number);
+    push(@{ $form->{TEMPLATE_ARRAYS}->{"iap_netamount"} },         $invoice_for_advance_payment->netamount_as_number);
+    push(@{ $form->{TEMPLATE_ARRAYS}->{"iap_taxamount_nofmt"} },   $taxamount);
+    push(@{ $form->{TEMPLATE_ARRAYS}->{"iap_taxamount"} },         $form->format_amount($myconfig, $taxamount, 2));
+
+    my $open_amount = $form->round_amount($invoice_for_advance_payment->open_amount, 2);
+    push(@{ $form->{TEMPLATE_ARRAYS}->{"iap_open_amount_nofmt"} }, $open_amount);
+    push(@{ $form->{TEMPLATE_ARRAYS}->{"iap_open_amount"} },       $form->format_amount($myconfig, $open_amount, 2));
+
+    $form->{iap_amount_nofmt}      += $invoice_for_advance_payment->amount;
+    $form->{iap_taxamount_nofmt}   += $taxamount;
+    $form->{iap_open_amount_nofmt} += $open_amount;
+    $form->{iap_existing}           = 1;
+  }
+  $form->{iap_amount}      = $form->format_amount($myconfig, $form->{iap_amount_nofmt},      2);
+  $form->{iap_taxamount}   = $form->format_amount($myconfig, $form->{iap_taxamount_nofmt},   2);
+  $form->{iap_open_amount} = $form->format_amount($myconfig, $form->{iap_open_amount_nofmt}, 2);
 
-  $main::lxdebug->leave_sub();
-}
-
-sub project_description {
-  $main::lxdebug->enter_sub();
-
-  my ($self, $dbh, $id) = @_;
-  my $form = \%main::form;
-
-  my $query = qq|SELECT description FROM project WHERE id = ?|;
-  my ($description) = selectrow_query($form, $dbh, $query, conv_i($id));
+  $form->{iap_final_amount_nofmt} = $form->{invtotal_nofmt} - $form->{iap_amount_nofmt};
+  $form->{iap_final_amount}       = $form->format_amount($myconfig, $form->{iap_final_amount_nofmt}, 2);
 
   $main::lxdebug->leave_sub();
-
-  return $_;
 }
 
 sub customer_details {
@@ -506,6 +664,7 @@ sub customer_details {
       $ref->{street} = $customer->street;
       $ref->{zipcode} = $customer->zipcode;
       $ref->{country} = $customer->country;
+      $ref->{gln} = $customer->gln;
     }
     my $contact = SL::DB::Manager::Contact->find_by(cp_id => $::form->{cp_id});
     if ($contact) {
@@ -514,8 +673,8 @@ sub customer_details {
       $ref->{cp_gender} = $contact->cp_gender;
     }
   }
-  # remove id and taxincluded before copy back
-  delete @$ref{qw(id taxincluded)};
+  # remove id,notes (double of customernotes) and taxincluded before copy back
+  delete @$ref{qw(id taxincluded notes)};
 
   @wanted_vars = grep({ $_ } @wanted_vars);
   if (scalar(@wanted_vars) > 0) {
@@ -553,6 +712,13 @@ sub customer_details {
                                                     'trans_id' => $form->{customer_id});
   map { $form->{"vc_cvar_$_->{name}"} = $_->{value} } @{ $custom_variables };
 
+  if ($form->{cp_id}) {
+    $custom_variables = CVar->get_custom_variables(dbh      => $dbh,
+                                                   module   => 'Contacts',
+                                                   trans_id => $form->{cp_id});
+    $form->{"cp_cvar_$_->{name}"} = $_->{value} for @{ $custom_variables };
+  }
+
   $form->{cp_greeting} = GenericTranslations->get('dbh'              => $dbh,
                                                   'translation_type' => 'greetings::' . ($form->{cp_gender} eq 'f' ? 'female' : 'male'),
                                                   'language_id'      => $language_id,
@@ -563,12 +729,20 @@ sub customer_details {
 }
 
 sub post_invoice {
+  my ($self, $myconfig, $form, $provided_dbh, %params) = @_;
   $main::lxdebug->enter_sub();
 
-  my ($self, $myconfig, $form, $provided_dbh, $payments_only) = @_;
+  my $rc = SL::DB->client->with_transaction(\&_post_invoice, $self, $myconfig, $form, $provided_dbh, %params);
+
+  $::lxdebug->leave_sub;
+  return $rc;
+}
 
-  # connect to database, turn off autocommit
-  my $dbh = $provided_dbh ? $provided_dbh : $form->get_standard_dbh;
+sub _post_invoice {
+  my ($self, $myconfig, $form, $provided_dbh, %params) = @_;
+
+  my $payments_only = $params{payments_only};
+  my $dbh = $provided_dbh || SL::DB->client->dbh;
   my $restricter = SL::HTML::Restrict->create;
 
   my ($query, $sth, $null, $project_id, @values);
@@ -586,6 +760,8 @@ sub post_invoice {
 
   my $all_units = AM->retrieve_units($myconfig, $form);
 
+  my $already_booked = !!$form->{id};
+
   if (!$payments_only) {
     if ($form->{storno}) {
       _delete_transfers($dbh, $form, $form->{storno_id});
@@ -740,9 +916,9 @@ sub post_invoice {
 
       next if $payments_only;
 
-      if ($form->{"inventory_accno_$i"} || $form->{"assembly_$i"}) {
+      if ($form->{"inventory_accno_$i"} || $form->{"part_type_$i"} eq 'assembly') {
 
-        if ($form->{"assembly_$i"}) {
+        if ($form->{"part_type_$i"} eq 'assembly') {
           # record assembly item as allocated
           &process_assembly($dbh, $myconfig, $form, $position, $form->{"id_$i"}, $baseqty);
 
@@ -782,7 +958,7 @@ sub post_invoice {
         UPDATE invoice SET trans_id = ?, position = ?, parts_id = ?, description = ?, longdescription = ?, qty = ?,
                            sellprice = ?, fxsellprice = ?, discount = ?, allocated = ?, assemblyitem = ?,
                            unit = ?, deliverydate = ?, project_id = ?, serialnumber = ?, pricegroup_id = ?,
-                           ordnumber = ?, donumber = ?, transdate = ?, cusordnumber = ?, base_qty = ?, subtotal = ?,
+                           base_qty = ?, subtotal = ?,
                            marge_percent = ?, marge_total = ?, lastcost = ?, active_price_source = ?, active_discount_source = ?,
                            price_factor_id = ?, price_factor = (SELECT factor FROM price_factors WHERE id = ?), marge_price_factor = ?
         WHERE id = ?
@@ -794,8 +970,7 @@ SQL
                  $form->{"discount_$i"}, $allocated, 'f',
                  $form->{"unit_$i"}, conv_date($form->{"reqdate_$i"}), conv_i($form->{"project_id_$i"}),
                  $form->{"serialnumber_$i"}, $pricegroup_id,
-                 $form->{"ordnumber_$i"}, $form->{"donumber_$i"}, conv_date($form->{"transdate_$i"}),
-                 $form->{"cusordnumber_$i"}, $baseqty, $form->{"subtotal_$i"} ? 't' : 'f',
+                 $baseqty, $form->{"subtotal_$i"} ? 't' : 'f',
                  $form->{"marge_percent_$i"}, $form->{"marge_absolut_$i"},
                  $form->{"lastcost_$i"},
                  $form->{"active_price_source_$i"}, $form->{"active_discount_source_$i"},
@@ -883,9 +1058,21 @@ SQL
     }
   }
 
-  $form->{amount}{ $form->{id} }{ $form->{AR} } = $netamount + $tax;
-  $form->{paid} =
-    $form->round_amount($form->{paid} * $form->{exchangerate} + $diff, 2);
+  # Invoice Summary includes Rounding
+  my $grossamount = $netamount + $tax;
+  my $rounding = $form->round_amount(
+    $form->round_amount($grossamount, 2, 1) - $form->round_amount($grossamount, 2),
+    2
+  );
+  my $rnd_accno = $rounding == 0 ? 0
+                : $rounding > 0  ? $form->{rndgain_accno}
+                :                  $form->{rndloss_accno}
+  ;
+  $form->{amount}{ $form->{id} }{ $form->{AR} } = $form->round_amount($grossamount, 2, 1);
+  $form->{paid} = $form->round_amount(
+    $form->{paid} * $form->{exchangerate} + $diff,
+    2
+  );
 
   # reverse AR
   $form->{amount}{ $form->{id} }{ $form->{AR} } *= -1;
@@ -898,7 +1085,106 @@ SQL
 
   $project_id = conv_i($form->{"globalproject_id"});
   # entsprechend auch beim Bestimmen des Steuerschlüssels in Taxkey.pm berücksichtigen
-  my $taxdate = $form->{deliverydate} ? $form->{deliverydate} : $form->{invdate};
+  my $taxdate = $form->{tax_point} ||$form->{deliverydate} || $form->{invdate};
+
+  # Sanity checks for invoices for advance payment and final invoices
+  my $advance_payment_clearing_chart;
+  if (any { $_ eq $form->{type} } qw(invoice_for_advance_payment final_invoice)) {
+    $advance_payment_clearing_chart = SL::DB::Chart->new(id => $::instance_conf->get_advance_payment_clearing_chart_id)->load;
+    die "No Clearing Chart for Advance Payment" unless ref $advance_payment_clearing_chart eq 'SL::DB::Chart';
+
+    my @current_taxaccounts = (split(/ /, $form->{taxaccounts}));
+    die 'Wrong call: Cannot post invoice for advance payment or final invoice with more than one tax' if (scalar @current_taxaccounts > 1);
+
+    my @trans_ids = keys %{ $form->{amount} };
+    if (scalar @trans_ids > 1) {
+      require Data::Dumper;
+      die "Invalid state for advance payment more than one trans_id " . Dumper($form->{amount});
+    }
+  }
+
+  my $iap_amounts;
+  if ($form->{type} eq 'final_invoice') {
+    my $id_for_iap = $form->{convert_from_oe_ids} || $form->{convert_from_ar_ids} || $form->{id};
+    my $from_order = !!$form->{convert_from_oe_ids};
+    my $invoices_for_advance_payment = $self->_get_invoices_for_advance_payment($id_for_iap, $from_order);
+    if (scalar @$invoices_for_advance_payment > 0) {
+      # reverse booking for invoices for advance payment
+      foreach my $invoice_for_advance_payment (@$invoices_for_advance_payment) {
+        # delete ?
+        # --> is implemented below (bookings are marked in memo field)
+        #
+        # TODO: helper table acc_trans_advance_payment
+        # trans_id for final invoice connects to acc_trans_id here
+        # my $booking = SL::DB::AccTrans->new( ...)
+        # --> helper table not nessessary because of mark in memo field
+        #
+        # TODO: If final_invoice change (delete storno) delete all connectin acc_trans entries, if
+        # period is not closed
+        # --> no problem because gldate of reverse booking is date of final invoice
+        #     if deletion of final invoice is allowed, reverting bookings in invoices
+        #     for advance payment are allowed, too.
+        # $booking->id, $self->id in helper table
+        if (!$already_booked) {
+          # move all netamount to correct transfer chart (19% or 7%)
+          my %inv_calc = $invoice_for_advance_payment->calculate_prices_and_taxes();
+          my @trans_ids = keys %{ $inv_calc{amounts} };
+          die "Invalid state for advance payment invoice,more than one trans_id" if (scalar @trans_ids > 1);
+          my $entry = delete $inv_calc{amounts}{$trans_ids[0]};
+          my $tax;
+          if ($entry->{tax_id}) {
+            $tax = SL::DB::Manager::Tax->find_by(id => $entry->{tax_id}); # || die "Can't find tax with id " . $entry->{tax_id};
+          }
+          # no tax, no prob
+          if ($tax and $tax->rate != 0) {
+            my $transfer_chart = $tax->taxkey == 2 ? SL::DB::Chart->new(id => $::instance_conf->get_advance_payment_taxable_7_id)->load
+                              :  $tax->taxkey == 3 ? SL::DB::Chart->new(id => $::instance_conf->get_advance_payment_taxable_19_id)->load
+                              :  undef;
+            die "No Transfer Chart for Advance Payment" unless ref $transfer_chart eq 'SL::DB::Chart';
+            $form->{amount}->{$invoice_for_advance_payment->id}->{$transfer_chart->accno} = -1 * $invoice_for_advance_payment->netamount;
+            $form->{memo}  ->{$invoice_for_advance_payment->id}->{$transfer_chart->accno} = 'reverse booking by final invoice';
+            # AR
+            $form->{amount}->{$invoice_for_advance_payment->id}->{$form->{AR}} = $invoice_for_advance_payment->netamount;
+            $form->{memo}  ->{$invoice_for_advance_payment->id}->{$form->{AR}} = 'reverse booking by final invoice';
+          }
+        }
+
+        # VAT for invoices for advance payment is booked on payment of these. So do not book this VAT for final invoice.
+        # And book the amount of the invoices for advance payment with taxkey 0 (see below).
+        # Collect amounts and VAT of invoices for advance payment.
+
+        # Set sellprices to fxsellprices for items, because
+        # the PriceTaxCalculator sets fxsellprice from sellprice before calculating.
+        $_->sellprice($_->fxsellprice) for @{$invoice_for_advance_payment->items};
+        my %pat = $invoice_for_advance_payment->calculate_prices_and_taxes;
+
+        foreach my $tax_chart_id (keys %{ $pat{taxes_by_chart_id} }) {
+          my $tax_accno = SL::DB::Chart->load_cached($tax_chart_id)->accno;
+          $form->{amount}{ $form->{id} }{$tax_accno}  -= $pat{taxes_by_chart_id}->{$tax_chart_id};
+          $form->{amount}{ $form->{id} }{$form->{AR}} += $pat{taxes_by_chart_id}->{$tax_chart_id};
+        }
+
+        foreach my $amount_chart_id (keys %{ $pat{amounts} }) {
+          my $amount_accno = SL::DB::Chart->load_cached($amount_chart_id)->accno;
+          $iap_amounts->{$amount_accno}                 += $pat{amounts}->{$amount_chart_id}->{amount};
+          $form->{amount}{ $form->{id} }{$amount_accno} -= $pat{amounts}->{$amount_chart_id}->{amount};
+        }
+      }
+    }
+  }
+
+  if ($form->{type} eq 'invoice_for_advance_payment') {
+    # get gross and move to clearing chart - delete everything else
+    # 1. gross
+    my $gross = $form->{amount}{ $form->{id} }{$form->{AR}};
+    # 2. destroy
+    undef $form->{amount}{ $form->{id} };
+    # 3. rebuild
+    $form->{amount}{ $form->{id} }{$form->{AR}}            = $gross;
+    $form->{amount}{ $form->{id} }{$advance_payment_clearing_chart->accno} = $gross * -1;
+    # 4. no cogs, hopefully not commonly used at all
+    undef $form->{amount_cogs};
+  }
 
   foreach my $trans_id (keys %{ $form->{amount_cogs} }) {
     foreach my $accno (keys %{ $form->{amount_cogs}{$trans_id} }) {
@@ -937,7 +1223,7 @@ SQL
 
       if (!$payments_only && ($form->{amount}{$trans_id}{$accno} != 0)) {
         $query =
-          qq|INSERT INTO acc_trans (trans_id, chart_id, amount, transdate, tax_id, taxkey, project_id, chart_link)
+          qq|INSERT INTO acc_trans (trans_id, chart_id, amount, transdate, tax_id, taxkey, project_id, chart_link, memo)
              VALUES (?, (SELECT id FROM chart WHERE accno = ?), ?, ?,
                      (SELECT tax_id
                       FROM taxkeys
@@ -954,8 +1240,9 @@ SQL
                       AND startdate <= ?
                       ORDER BY startdate DESC LIMIT 1),
                      ?,
-                     (SELECT link FROM chart WHERE accno = ?))|;
-        @values = (conv_i($trans_id), $accno, $form->{amount}{$trans_id}{$accno}, conv_date($form->{invdate}), $accno, conv_date($taxdate), $accno, conv_date($taxdate), conv_i($project_id), $accno);
+                     (SELECT link FROM chart WHERE accno = ?),
+                     ?)|;
+        @values = (conv_i($trans_id), $accno, $form->{amount}{$trans_id}{$accno}, conv_date($form->{invdate}), $accno, conv_date($taxdate), $accno, conv_date($taxdate), conv_i($project_id), $accno, $form->{memo}{$trans_id}{$accno});
         do_query($form, $dbh, $query, @values);
         $form->{amount}{$trans_id}{$accno} = 0;
       }
@@ -966,7 +1253,7 @@ SQL
 
       if (!$payments_only && ($form->{amount}{$trans_id}{$accno} != 0)) {
         $query =
-          qq|INSERT INTO acc_trans (trans_id, chart_id, amount, transdate, tax_id, taxkey, project_id, chart_link)
+          qq|INSERT INTO acc_trans (trans_id, chart_id, amount, transdate, tax_id, taxkey, project_id, chart_link, memo)
              VALUES (?, (SELECT id FROM chart WHERE accno = ?), ?, ?,
                      (SELECT tax_id
                       FROM taxkeys
@@ -983,11 +1270,31 @@ SQL
                       AND startdate <= ?
                       ORDER BY startdate DESC LIMIT 1),
                      ?,
-                     (SELECT link FROM chart WHERE accno = ?))|;
-        @values = (conv_i($trans_id), $accno, $form->{amount}{$trans_id}{$accno}, conv_date($form->{invdate}), $accno, conv_date($taxdate), $accno, conv_date($taxdate), conv_i($project_id), $accno);
+                     (SELECT link FROM chart WHERE accno = ?),
+                     ?)|;
+        @values = (conv_i($trans_id), $accno, $form->{amount}{$trans_id}{$accno}, conv_date($form->{invdate}), $accno, conv_date($taxdate), $accno, conv_date($taxdate), conv_i($project_id), $accno,$form->{memo}{$trans_id}{$accno});
         do_query($form, $dbh, $query, @values);
       }
     }
+    if (!$payments_only && ($rnd_accno != 0)) {
+      $query =
+        qq|INSERT INTO acc_trans (trans_id, chart_id, amount, transdate, tax_id, taxkey, project_id, chart_link)
+             VALUES (?, (SELECT id FROM chart WHERE accno = ?), ?, ?, (SELECT id FROM tax WHERE taxkey=0), 0, ?, (SELECT link FROM chart WHERE accno = ?))|;
+      @values = (conv_i($trans_id), $rnd_accno, $rounding, conv_date($form->{invdate}), conv_i($project_id), $rnd_accno);
+      do_query($form, $dbh, $query, @values);
+      $rnd_accno = 0;
+    }
+  }
+
+  # Book the amount of the invoices for advance payment with taxkey 0 (see below).
+  if ($form->{type} eq 'final_invoice' && $iap_amounts) {
+    foreach my $accno (keys %$iap_amounts) {
+      $query =
+        qq|INSERT INTO acc_trans (trans_id, chart_id, amount, transdate, tax_id, taxkey, project_id, chart_link)
+        VALUES (?, (SELECT id FROM chart WHERE accno = ?), ?, ?, (SELECT id FROM tax WHERE taxkey=0), 0, ?, (SELECT link FROM chart WHERE accno = ?))|;
+      @values = (conv_i($form->{id}), $accno, $iap_amounts->{$accno}, conv_date($form->{invdate}), conv_i($project_id), $accno);
+      do_query($form, $dbh, $query, @values);
+    }
   }
 
   # deduct payment differences from diff
@@ -999,6 +1306,8 @@ SQL
     }
   }
 
+  my %already_cleared = %{ $params{already_cleared} // {} };
+
   # record payments and offsetting AR
   if (!$form->{storno}) {
     for my $i (1 .. $form->{paidaccounts}) {
@@ -1028,9 +1337,16 @@ SQL
       # record AR
       $amount = $form->round_amount($form->{"paid_$i"} * $form->{exchangerate} + $diff, 2);
 
+      my $new_cleared = !$form->{"acc_trans_id_$i"}                                                       ? 'f'
+                      : !$already_cleared{$form->{"acc_trans_id_$i"}}                                     ? 'f'
+                      : $already_cleared{$form->{"acc_trans_id_$i"}}->{amount} != $form->{"paid_$i"} * -1 ? 'f'
+                      : $already_cleared{$form->{"acc_trans_id_$i"}}->{accno}  != $accno                  ? 'f'
+                      : $already_cleared{$form->{"acc_trans_id_$i"}}->{cleared}                           ? 't'
+                      :                                                                                     'f';
+
       if ($form->{amount}{ $form->{id} }{ $form->{AR} } != 0) {
         $query =
-        qq|INSERT INTO acc_trans (trans_id, chart_id, amount, transdate, tax_id, taxkey, project_id, chart_link)
+        qq|INSERT INTO acc_trans (trans_id, chart_id, amount, transdate, tax_id, taxkey, project_id, cleared, chart_link)
            VALUES (?, (SELECT id FROM chart WHERE accno = ?), ?, ?,
                    (SELECT tax_id
                     FROM taxkeys
@@ -1046,9 +1362,9 @@ SQL
                                      WHERE accno = ?)
                     AND startdate <= ?
                     ORDER BY startdate DESC LIMIT 1),
-                   ?,
+                   ?, ?,
                    (SELECT link FROM chart WHERE accno = ?))|;
-        @values = (conv_i($form->{"id"}), $form->{AR}, $amount, $form->{"datepaid_$i"}, $form->{AR}, conv_date($taxdate), $form->{AR}, conv_date($taxdate), $project_id, $form->{AR});
+        @values = (conv_i($form->{"id"}), $form->{AR}, $amount, $form->{"datepaid_$i"}, $form->{AR}, conv_date($taxdate), $form->{AR}, conv_date($taxdate), $project_id, $new_cleared, $form->{AR});
         do_query($form, $dbh, $query, @values);
       }
 
@@ -1057,7 +1373,7 @@ SQL
       my $gldate = (conv_date($form->{"gldate_$i"}))? conv_date($form->{"gldate_$i"}) : conv_date($form->current_date($myconfig));
 
       $query =
-      qq|INSERT INTO acc_trans (trans_id, chart_id, amount, transdate, gldate, source, memo, tax_id, taxkey, project_id, chart_link)
+      qq|INSERT INTO acc_trans (trans_id, chart_id, amount, transdate, gldate, source, memo, tax_id, taxkey, project_id, cleared, chart_link)
          VALUES (?, (SELECT id FROM chart WHERE accno = ?), ?, ?, ?, ?, ?,
                  (SELECT tax_id
                   FROM taxkeys
@@ -1073,10 +1389,10 @@ SQL
                                    WHERE accno = ?)
                   AND startdate <= ?
                   ORDER BY startdate DESC LIMIT 1),
-                 ?,
+                 ?, ?,
                  (SELECT link FROM chart WHERE accno = ?))|;
       @values = (conv_i($form->{"id"}), $accno, $form->{"paid_$i"}, $form->{"datepaid_$i"},
-                 $gldate, $form->{"source_$i"}, $form->{"memo_$i"}, $accno, conv_date($taxdate), $accno, conv_date($taxdate), $project_id, $accno);
+                 $gldate, $form->{"source_$i"}, $form->{"memo_$i"}, $accno, conv_date($taxdate), $accno, conv_date($taxdate), $project_id, $new_cleared, $accno);
       do_query($form, $dbh, $query, @values);
 
       # exchangerate difference
@@ -1144,45 +1460,44 @@ SQL
     $query = qq|UPDATE ar SET paid = ? WHERE id = ?|;
     do_query($form, $dbh, $query,  $form->{paid}, conv_i($form->{id}));
 
-    $dbh->commit if !$provided_dbh;
+    $form->new_lastmtime('ar');
 
-    $main::lxdebug->leave_sub();
     return;
   }
 
-  $amount = $netamount + $tax;
+  $amount = $form->round_amount( $netamount + $tax, 2, 1);
 
   # save AR record
   #erweiterung fuer lieferscheinnummer (donumber) 12.02.09 jb
 
   $query = qq|UPDATE ar set
                 invnumber   = ?, ordnumber     = ?, quonumber     = ?, cusordnumber  = ?,
-                transdate   = ?, orddate       = ?, quodate       = ?, customer_id   = ?,
+                transdate   = ?, orddate       = ?, quodate       = ?, tax_point     = ?, customer_id   = ?,
                 amount      = ?, netamount     = ?, paid          = ?,
                 duedate     = ?, deliverydate  = ?, invoice       = ?, shippingpoint = ?,
-                shipvia     = ?, terms         = ?, notes         = ?, intnotes      = ?,
+                shipvia     = ?,                    notes         = ?, intnotes      = ?,
                 currency_id = (SELECT id FROM currencies WHERE name = ?),
                 department_id = ?, payment_id    = ?, taxincluded   = ?,
-                type        = ?, language_id   = ?, taxzone_id    = ?, shipto_id     = ?,
+                type        = ?, language_id   = ?, taxzone_id    = ?, shipto_id     = ?, billing_address_id = ?,
                 employee_id = ?, salesman_id   = ?, storno_id     = ?, storno        = ?,
                 cp_id       = ?, marge_total   = ?, marge_percent = ?,
                 globalproject_id               = ?, delivery_customer_id             = ?,
                 transaction_description        = ?, delivery_vendor_id               = ?,
-                donumber    = ?, invnumber_for_credit_note = ?,        direct_debit  = ?,
+                donumber    = ?, invnumber_for_credit_note = ?,        direct_debit  = ?, qrbill_without_amount = ?,
                 delivery_term_id = ?
               WHERE id = ?|;
   @values = (          $form->{"invnumber"},           $form->{"ordnumber"},             $form->{"quonumber"},          $form->{"cusordnumber"},
-             conv_date($form->{"invdate"}),  conv_date($form->{"orddate"}),    conv_date($form->{"quodate"}),    conv_i($form->{"customer_id"}),
+             conv_date($form->{"invdate"}),  conv_date($form->{"orddate"}),    conv_date($form->{"quodate"}), conv_date($form->{tax_point}), conv_i($form->{"customer_id"}),
                        $amount,                        $netamount,                       $form->{"paid"},
              conv_date($form->{"duedate"}),  conv_date($form->{"deliverydate"}),    '1',                                $form->{"shippingpoint"},
-                       $form->{"shipvia"},      conv_i($form->{"terms"}), $restricter->process($form->{"notes"}),       $form->{"intnotes"},
+                       $form->{"shipvia"},                                $restricter->process($form->{"notes"}),       $form->{"intnotes"},
                        $form->{"currency"},     conv_i($form->{"department_id"}), conv_i($form->{"payment_id"}),        $form->{"taxincluded"} ? 't' : 'f',
-                       $form->{"type"},         conv_i($form->{"language_id"}),   conv_i($form->{"taxzone_id"}), conv_i($form->{"shipto_id"}),
+                       $form->{"type"},         conv_i($form->{"language_id"}),   conv_i($form->{"taxzone_id"}), conv_i($form->{"shipto_id"}), conv_i($form->{billing_address_id}),
                 conv_i($form->{"employee_id"}), conv_i($form->{"salesman_id"}),   conv_i($form->{storno_id}),           $form->{"storno"} ? 't' : 'f',
                 conv_i($form->{"cp_id"}),            1 * $form->{marge_total} ,      1 * $form->{marge_percent},
                 conv_i($form->{"globalproject_id"}),                              conv_i($form->{"delivery_customer_id"}),
                        $form->{transaction_description},                          conv_i($form->{"delivery_vendor_id"}),
-                       $form->{"donumber"}, $form->{"invnumber_for_credit_note"},        $form->{direct_debit} ? 't' : 'f',
+                       $form->{"donumber"}, $form->{"invnumber_for_credit_note"},        $form->{direct_debit} ? 't' : 'f', $form->{qrbill_without_amount} ? 't' : 'f',
                 conv_i($form->{delivery_term_id}),
                 conv_i($form->{"id"}));
   do_query($form, $dbh, $query, @values);
@@ -1191,7 +1506,7 @@ SQL
   if ($form->{storno}) {
     $query =
       qq!UPDATE ar SET
-           paid = paid + amount,
+           paid = amount,
            storno = 't',
            intnotes = ? || intnotes
          WHERE id = ?!;
@@ -1199,8 +1514,10 @@ SQL
     do_query($form, $dbh, qq|UPDATE ar SET paid = amount WHERE id = ?|, conv_i($form->{"id"}));
   }
 
-  $form->{name} = $form->{customer};
-  $form->{name} =~ s/--\Q$form->{customer_id}\E//;
+  # maybe we are in a larger transaction and the current
+  # object is not yet persistent in the db, therefore we
+  # need the current dbh to get the not yet committed mtime
+  $form->new_lastmtime('ar', $provided_dbh);
 
   # add shipto
   if (!$form->{shipto_id}) {
@@ -1265,36 +1582,87 @@ SQL
     do_query($form, $dbh, $query, @orphaned_ids);
   }
 
+  if ($form->{draft_id}) {
+    SL::DB::Manager::Draft->delete_all(where => [ id => delete($form->{draft_id}) ]);
+  }
+
   # safety check datev export
   if ($::instance_conf->get_datev_check_on_sales_invoice) {
-    my $transdate = $::form->{invdate} ? DateTime->from_lxoffice($::form->{invdate}) : undef;
-    $transdate  ||= DateTime->today;
 
     my $datev = SL::DATEV->new(
-      exporttype => DATEV_ET_BUCHUNGEN,
-      format     => DATEV_FORMAT_KNE,
       dbh        => $dbh,
-      from       => $transdate,
-      to         => $transdate,
       trans_id   => $form->{id},
     );
 
-    $datev->export;
+    $datev->generate_datev_data;
 
     if ($datev->errors) {
-      $dbh->rollback;
       die join "\n", $::locale->text('DATEV check returned errors:'), $datev->errors;
     }
   }
 
-  my $rc = 1;
-  $dbh->commit if !$provided_dbh;
+  # update shop status
+  my $invoice = SL::DB::Invoice->new( id => $form->{id} )->load;
+  my @linked_shop_orders = $invoice->linked_records(
+    from      => 'ShopOrder',
+    via       => ['DeliveryOrder','Order',],
+  );
+    #do update
+    my $shop_order = $linked_shop_orders[0][0];
+  if ( $shop_order ) {
+    require SL::Shop;
+    my $shop_config = SL::DB::Manager::Shop->get_first( query => [ id => $shop_order->shop_id ] );
+    my $shop = SL::Shop->new( config => $shop_config );
+    $shop->connector->set_orderstatus($shop_order->shop_trans_id, "completed");
+  }
 
-  $main::lxdebug->leave_sub();
+  return 1;
+}
 
-  return $rc;
+sub _get_invoices_for_advance_payment {
+  my ($self, $id, $id_is_from_order) = @_;
+
+  return [] if !$id;
+
+  # Search all related invoices for advance payment.
+  # Case 1:
+  # (order) -> invoice for adv. payment 1 -> invoice for adv. payment 2 -> invoice for adv. payment 3 -> final invoice
+  #
+  # Case 2:
+  # order -> invoice for adv. payment 1
+  #   | |`-> invoice for adv. payment 2
+  #   | `--> invoice for adv. payment 3
+  #   `----> final invoice
+  #
+  # The id is currently that from the last invoice for adv. payment (3 in this example),
+  # that from the final invoice or that from the order.
+
+  my $invoice_obj;
+  my $order_obj;
+  my $links;
+
+  if (!$id_is_from_order) {
+    $invoice_obj = SL::DB::Invoice->load_cached($id*1);
+    $links       = $invoice_obj->linked_records(direction => 'from', from => ['Order']);
+    $order_obj   = $links->[0];
+  } else {
+    $order_obj   = SL::DB::Order->load_cached($id*1);
+  }
+
+  if ($order_obj) {
+    $links        = $order_obj  ->linked_records(direction => 'to',   to => ['Invoice']);
+  } else {
+    $links        = $invoice_obj->linked_records(direction => 'from', from => ['Invoice'], recursive => 1);
+  }
+
+  my @related_invoices = grep {'SL::DB::Invoice' eq ref $_ && "invoice_for_advance_payment" eq $_->type} @$links;
+
+  push @related_invoices, $invoice_obj if !$order_obj && "invoice_for_advance_payment" eq $invoice_obj->type;
+
+  return \@related_invoices;
 }
 
+
 sub transfer_out {
   $::lxdebug->enter_sub;
 
@@ -1302,7 +1670,7 @@ sub transfer_out {
 
   my (@errors, @transfers);
 
-  # do nothing, if transfer default is not requeseted at all
+  # do nothing, if transfer default is not requested at all
   if (!$::instance_conf->get_transfer_default) {
     $::lxdebug->leave_sub;
     return \@errors;
@@ -1312,26 +1680,56 @@ sub transfer_out {
 
   foreach my $i (1 .. $form->{rowcount}) {
     next if !$form->{"id_$i"};
-    my ($err, $wh_id, $bin_id) = _determine_wh_and_bin($dbh, $::instance_conf,
-                                                       $form->{"id_$i"},
-                                                       $form->{"qty_$i"},
-                                                       $form->{"unit_$i"});
-    if (!@{ $err } && $wh_id && $bin_id) {
-      push @transfers, {
-        'parts_id'         => $form->{"id_$i"},
-        'qty'              => $form->{"qty_$i"},
-        'unit'             => $form->{"unit_$i"},
-        'transfer_type'    => 'shipped',
-        'src_warehouse_id' => $wh_id,
-        'src_bin_id'       => $bin_id,
-        'project_id'       => $form->{"project_id_$i"},
-        'invoice_id'       => $form->{"invoice_id_$i"},
-        'comment'          => $::locale->text("Default transfer invoice"),
-      };
-    }
 
+    my ($err, $qty, $wh_id, $bin_id, $chargenumber);
+
+    if ($::instance_conf->get_sales_serial_eq_charge && $form->{"serialnumber_$i"}) {
+      my @serials = split(" ", $form->{"serialnumber_$i"});
+      if (scalar @serials != $form->{"qty_$i"}) {
+        push @errors, $::locale->text("Cannot transfer #1 qty with #2 serial number(s)", $form->{"qty_$i"}, scalar @serials);
+        last;
+      }
+      foreach my $serial (@serials) {
+        ($qty, $wh_id, $bin_id, $chargenumber) = WH->get_wh_and_bin_for_charge(chargenumber => $serial);
+        if (!$qty) {
+          push @errors, $::locale->text("Not enough in stock for the serial number #1", $serial);
+          last;
+        }
+        push @transfers, {
+            'parts_id'         => $form->{"id_$i"},
+            'qty'              => 1,
+            'unit'             => $form->{"unit_$i"},
+            'transfer_type'    => 'shipped',
+            'src_warehouse_id' => $wh_id,
+            'src_bin_id'       => $bin_id,
+            'chargenumber'     => $chargenumber,
+            'project_id'       => $form->{"project_id_$i"},
+            'invoice_id'       => $form->{"invoice_id_$i"},
+            'comment'          => $::locale->text("Default transfer invoice with charge number"),
+        };
+      }
+      $err = []; # error handling uses @errors direct
+    } else {
+      ($err, $wh_id, $bin_id)    = _determine_wh_and_bin($dbh, $::instance_conf,
+                                                         $form->{"id_$i"},
+                                                         $form->{"qty_$i"},
+                                                         $form->{"unit_$i"});
+      if (!@{ $err } && $wh_id && $bin_id) {
+        push @transfers, {
+          'parts_id'         => $form->{"id_$i"},
+          'qty'              => $form->{"qty_$i"},
+          'unit'             => $form->{"unit_$i"},
+          'transfer_type'    => 'shipped',
+          'src_warehouse_id' => $wh_id,
+          'src_bin_id'       => $bin_id,
+          'project_id'       => $form->{"project_id_$i"},
+          'invoice_id'       => $form->{"invoice_id_$i"},
+          'comment'          => $::locale->text("Default transfer invoice"),
+        };
+      }
+    }
     push @errors, @{ $err };
-  }
+  } # end form rowcount
 
   if (!@errors) {
     WH->transfer(@transfers);
@@ -1376,7 +1774,7 @@ sub _determine_wh_and_bin {
                                                       parts_id => $part->id,
                                                       bin_id   => $bin_id);
     if ($error == 1) {
-      push @errors, $::locale->text('Part "#1" has chargenumber or best before date set. So it cannot be transfered automaticaly.',
+      push @errors, $::locale->text('Part "#1" has chargenumber or best before date set. So it cannot be transfered automatically.',
                                     $part->description);
     }
     my $form_unit_obj = SL::DB::Unit->new(name => $unit)->load;
@@ -1464,17 +1862,33 @@ sub _delete_payments {
 }
 
 sub post_payment {
+  my ($self, $myconfig, $form, $locale) = @_;
   $main::lxdebug->enter_sub();
 
+  my $rc = SL::DB->client->with_transaction(\&_post_payment, $self, $myconfig, $form, $locale);
+
+  $::lxdebug->leave_sub;
+  return $rc;
+}
+
+sub _post_payment {
   my ($self, $myconfig, $form, $locale) = @_;
 
-  # connect to database, turn off autocommit
-  my $dbh = $form->get_standard_dbh;
+  my $dbh = SL::DB->client->dbh;
 
   my (%payments, $old_form, $row, $item, $query, %keep_vars);
 
   $old_form = save_form();
 
+  $query = <<SQL;
+    SELECT at.acc_trans_id, at.amount, at.cleared, c.accno
+    FROM acc_trans at
+    LEFT JOIN chart c ON (at.chart_id = c.id)
+    WHERE (at.trans_id = ?)
+SQL
+
+  my %already_cleared = selectall_as_map($form, $dbh, $query, 'acc_trans_id', [ qw(amount cleared accno) ], $form->{id});
+
   # Delete all entries in acc_trans from prior payments.
   if (SL::DB::Default->get->payments_changeable != 0) {
     $self->_delete_payments($form, $dbh);
@@ -1521,15 +1935,11 @@ sub post_payment {
   ($form->{AR}) = selectfirst_array_query($form, $dbh, $query, conv_i($form->{id}));
 
   # Post the new payments.
-  $self->post_invoice($myconfig, $form, $dbh, 1);
+  $self->post_invoice($myconfig, $form, $dbh, payments_only => 1, already_cleared => \%already_cleared);
 
   restore_form($old_form);
 
-  my $rc = $dbh->commit();
-
-  $main::lxdebug->leave_sub();
-
-  return $rc;
+  return 1;
 }
 
 sub process_assembly {
@@ -1538,8 +1948,7 @@ sub process_assembly {
   my ($dbh, $myconfig, $form, $position, $id, $totalqty) = @_;
 
   my $query =
-    qq|SELECT a.parts_id, a.qty, p.assembly, p.partnumber, p.description, p.unit,
-         p.inventory_accno_id, p.income_accno_id, p.expense_accno_id
+    qq|SELECT a.parts_id, a.qty, p.part_type, p.partnumber, p.description, p.unit
        FROM assembly a
        JOIN parts p ON (a.parts_id = p.id)
        WHERE (a.id = ?)|;
@@ -1679,7 +2088,7 @@ sub reverse_invoice {
 
   # reverse inventory items
   my $query =
-    qq|SELECT i.id, i.parts_id, i.qty, i.assemblyitem, p.assembly, p.inventory_accno_id
+    qq|SELECT i.id, i.parts_id, i.qty, i.assemblyitem, p.part_type
        FROM invoice i
        JOIN parts p ON (i.parts_id = p.id)
        WHERE i.trans_id = ?|;
@@ -1716,18 +2125,30 @@ sub reverse_invoice {
   # delete acc_trans
   my @values = (conv_i($form->{id}));
   do_query($form, $dbh, qq|DELETE FROM acc_trans WHERE trans_id = ?|, @values);
+
+  $query = qq|DELETE FROM custom_variables
+              WHERE (config_id IN (SELECT id        FROM custom_variable_configs WHERE (module = 'ShipTo')))
+                AND (trans_id  IN (SELECT shipto_id FROM shipto                  WHERE (module = 'AR') AND (trans_id = ?)))|;
+  do_query($form, $dbh, $query, @values);
   do_query($form, $dbh, qq|DELETE FROM shipto WHERE (trans_id = ?) AND (module = 'AR')|, @values);
 
   $main::lxdebug->leave_sub();
 }
 
 sub delete_invoice {
+  my ($self, $myconfig, $form) = @_;
   $main::lxdebug->enter_sub();
 
+  my $rc = SL::DB->client->with_transaction(\&_delete_invoice, $self, $myconfig, $form);
+
+  $::lxdebug->leave_sub;
+  return $rc;
+}
+
+sub _delete_invoice {
   my ($self, $myconfig, $form) = @_;
 
-  # connect to database
-  my $dbh = $form->get_standard_dbh;
+  my $dbh = SL::DB->client->dbh;
 
   &reverse_invoice($dbh, $form);
   _delete_transfers($dbh, $form, $form->{id});
@@ -1748,6 +2169,18 @@ sub delete_invoice {
     do_query($form, $dbh, qq|UPDATE ar SET storno = 'f', paid = 0 WHERE id = ?|, $invoice_id);
   }
 
+  # if we delete a final invoice, the reverse bookings for the clearing account in the invoice for advance payment
+  # must be deleted as well
+  my $invoices_for_advance_payment = $self->_get_invoices_for_advance_payment($form->{id});
+
+  # Todo: allow only if invoice for advance payment is not paid.
+  # die if any { $_->paid } for @$invoices_for_advance_payment;
+  my @trans_ids_to_consider        = map { $_->id } @$invoices_for_advance_payment;
+  if (scalar @trans_ids_to_consider) {
+    my $query = sprintf 'DELETE FROM acc_trans WHERE memo LIKE ? AND trans_id IN (%s)', join ', ', ("?") x scalar @trans_ids_to_consider;
+    do_query($form, $dbh, $query, 'reverse booking by final invoice', @trans_ids_to_consider);
+  }
+
   # delete spool files
   my @spoolfiles = selectall_array_query($form, $dbh, qq|SELECT spoolfile FROM status WHERE trans_id = ?|, @values);
 
@@ -1760,25 +2193,26 @@ sub delete_invoice {
 
   map { do_query($form, $dbh, $_, @values) } @queries;
 
-  my $rc = $dbh->commit;
-
-  if ($rc) {
-    my $spool = $::lx_office_conf{paths}->{spool};
-    map { unlink "$spool/$_" if -f "$spool/$_"; } @spoolfiles;
-  }
-
-  $main::lxdebug->leave_sub();
+  my $spool = $::lx_office_conf{paths}->{spool};
+  map { unlink "$spool/$_" if -f "$spool/$_"; } @spoolfiles;
 
-  return $rc;
+  return 1;
 }
 
 sub retrieve_invoice {
+  my ($self, $myconfig, $form) = @_;
   $main::lxdebug->enter_sub();
 
+  my $rc = SL::DB->client->with_transaction(\&_retrieve_invoice, $self, $myconfig, $form);
+
+  $::lxdebug->leave_sub;
+  return $rc;
+}
+
+sub _retrieve_invoice {
   my ($self, $myconfig, $form) = @_;
 
-  # connect to database
-  my $dbh = $form->get_standard_dbh;
+  my $dbh = SL::DB->client->dbh;
 
   my ($sth, $ref, $query);
 
@@ -1790,7 +2224,9 @@ sub retrieve_invoice {
          (SELECT c.accno FROM chart c WHERE d.income_accno_id = c.id)    AS income_accno,
          (SELECT c.accno FROM chart c WHERE d.expense_accno_id = c.id)   AS expense_accno,
          (SELECT c.accno FROM chart c WHERE d.fxgain_accno_id = c.id)    AS fxgain_accno,
-         (SELECT c.accno FROM chart c WHERE d.fxloss_accno_id = c.id)    AS fxloss_accno
+         (SELECT c.accno FROM chart c WHERE d.fxloss_accno_id = c.id)    AS fxloss_accno,
+         (SELECT c.accno FROM chart c WHERE d.rndgain_accno_id = c.id)   AS rndgain_accno,
+         (SELECT c.accno FROM chart c WHERE d.rndloss_accno_id = c.id)   AS rndloss_accno
          ${query_transdate}
        FROM defaults d|;
 
@@ -1807,19 +2243,25 @@ sub retrieve_invoice {
       qq|SELECT
            a.invnumber, a.ordnumber, a.quonumber, a.cusordnumber,
            a.orddate, a.quodate, a.globalproject_id,
-           a.transdate AS invdate, a.deliverydate, a.paid, a.storno, a.gldate,
-           a.shippingpoint, a.shipvia, a.terms, a.notes, a.intnotes, a.taxzone_id,
+           a.transdate AS invdate, a.deliverydate, a.tax_point, a.paid, a.storno, a.storno_id, a.gldate,
+           a.shippingpoint, a.shipvia, a.notes, a.intnotes, a.taxzone_id,
            a.duedate, a.taxincluded, (SELECT cu.name FROM currencies cu WHERE cu.id=a.currency_id) AS currency, a.shipto_id, a.cp_id,
+           a.billing_address_id,
            a.employee_id, a.salesman_id, a.payment_id,
+           a.mtime, a.itime,
            a.language_id, a.delivery_customer_id, a.delivery_vendor_id, a.type,
            a.transaction_description, a.donumber, a.invnumber_for_credit_note,
-           a.marge_total, a.marge_percent, a.direct_debit, a.delivery_term_id,
+           a.marge_total, a.marge_percent, a.direct_debit, a.qrbill_without_amount, a.delivery_term_id,
+           dc.dunning_description,
            e.name AS employee
          FROM ar a
          LEFT JOIN employee e ON (e.id = a.employee_id)
+         LEFT JOIN dunning_config dc ON (a.dunning_config_id = dc.id)
          WHERE a.id = ?|;
     $ref = selectfirst_hashref_query($form, $dbh, $query, $id);
     map { $form->{$_} = $ref->{$_} } keys %{ $ref };
+    $form->{mtime} = $form->{itime} if !$form->{mtime};
+    $form->{lastmtime} = $form->{mtime};
 
     $form->{exchangerate} = $form->get_exchangerate($dbh, $form->{currency}, $form->{invdate}, "buy");
 
@@ -1828,6 +2270,11 @@ sub retrieve_invoice {
       ($form->{"delivery_${vc}_string"}) = selectrow_query($form, $dbh, qq|SELECT name FROM customer WHERE id = ?|, $id);
     }
 
+    # get shipto
+    $query = qq|SELECT * FROM shipto WHERE (trans_id = ?) AND (module = 'AR')|;
+    $ref = selectfirst_hashref_query($form, $dbh, $query, $id);
+    $form->{$_} = $ref->{$_} for grep { m{^shipto(?!_id$)} } keys %$ref;
+
     # get printed, emailed
     $query = qq|SELECT printed, emailed, spoolfile, formname FROM status WHERE trans_id = ?|;
     $sth = prepare_execute_query($form, $dbh, $query, $id);
@@ -1840,7 +2287,8 @@ sub retrieve_invoice {
     $sth->finish;
     map { $form->{$_} =~ s/ +$//g } qw(printed emailed queued);
 
-    my $transdate = $form->{deliverydate} ? $dbh->quote($form->{deliverydate})
+    my $transdate = $form->{tax_point}    ? $dbh->quote($form->{tax_point})
+                  : $form->{deliverydate} ? $dbh->quote($form->{deliverydate})
                   : $form->{invdate}      ? $dbh->quote($form->{invdate})
                   :                         "current_date";
 
@@ -1859,7 +2307,8 @@ sub retrieve_invoice {
            i.description, i.longdescription, i.qty, i.fxsellprice AS sellprice, i.discount, i.parts_id AS id, i.unit, i.deliverydate AS reqdate,
            i.project_id, i.serialnumber, i.pricegroup_id, i.ordnumber, i.donumber, i.transdate, i.cusordnumber, i.subtotal, i.lastcost,
            i.price_factor_id, i.price_factor, i.marge_price_factor, i.active_price_source, i.active_discount_source,
-           p.partnumber, p.assembly, p.notes AS partnotes, p.inventory_accno_id AS part_inventory_accno_id, p.formel, p.listprice,
+           p.partnumber, p.part_type, p.notes AS partnotes, p.formel, p.listprice,
+           p.classification_id,
            pr.projectnumber, pg.partsgroup, prg.pricegroup
 
          FROM invoice i
@@ -1898,7 +2347,8 @@ sub retrieve_invoice {
       # get tax rates and description
       my $accno_id = ($form->{vc} eq "customer") ? $ref->{income_accno} : $ref->{expense_accno};
       $query =
-        qq|SELECT c.accno, t.taxdescription, t.rate, t.taxnumber FROM tax t
+        qq|SELECT c.accno, t.taxdescription, t.rate, t.id as tax_id, c.accno as taxnumber
+           FROM tax t
            LEFT JOIN chart c ON (c.id = t.chart_id)
            WHERE t.id IN
              (SELECT tk.tax_id FROM taxkeys tk
@@ -1920,7 +2370,8 @@ sub retrieve_invoice {
         if (!($form->{taxaccounts} =~ /\Q$ptr->{accno}\E/)) {
           $form->{"$ptr->{accno}_rate"}        = $ptr->{rate};
           $form->{"$ptr->{accno}_description"} = $ptr->{taxdescription};
-          $form->{"$ptr->{accno}_taxnumber"}   = $ptr->{taxnumber};
+          $form->{"$ptr->{accno}_taxnumber"}   = $ptr->{taxnumber}; # don't use this anymore
+          $form->{"$ptr->{accno}_tax_id"}      = $ptr->{tax_id};
           $form->{taxaccounts} .= "$ptr->{accno} ";
         }
 
@@ -1934,14 +2385,25 @@ sub retrieve_invoice {
     }
     $sth->finish;
 
-    Common::webdav_folder($form);
-  }
+    # Fetch shipping address.
+    $query = qq|SELECT s.* FROM shipto s WHERE s.trans_id = ? AND s.module = 'AR'|;
+    $ref   = selectfirst_hashref_query($form, $dbh, $query, $form->{id});
 
-  my $rc = $dbh->commit;
+    $form->{$_} = $ref->{$_} for grep { $_ ne 'id' } keys %$ref;
 
-  $main::lxdebug->leave_sub();
+    if ($form->{shipto_id}) {
+      my $cvars = CVar->get_custom_variables(
+        dbh      => $dbh,
+        module   => 'ShipTo',
+        trans_id => $form->{shipto_id},
+      );
+      $form->{"shiptocvar_$_->{name}"} = $_->{value} for @{ $cvars };
+    }
 
-  return $rc;
+    Common::webdav_folder($form);
+  }
+
+  return 1;
 }
 
 sub get_customer {
@@ -1955,45 +2417,47 @@ sub get_customer {
   my $dateformat = $myconfig->{dateformat};
   $dateformat .= "yy" if $myconfig->{dateformat} !~ /^y/;
 
-  my (@values, $duedate, $ref, $query);
-
-  if ($form->{invdate}) {
-    $duedate = "to_date(?, '$dateformat')";
-    push @values, $form->{invdate};
-  } else {
-    $duedate = "current_date";
-  }
+  my (@values, $ref, $query);
 
   my $cid = conv_i($form->{customer_id});
   my $payment_id;
 
-  if ($form->{payment_id}) {
-    $payment_id = "(pt.id = ?) OR";
-    push @values, conv_i($form->{payment_id});
-  }
-
   # get customer
+  my $where = '';
+  if ($cid) {
+    $where .= 'AND c.id = ?';
+    push @values, $cid;
+  }
   $query =
     qq|SELECT
-         c.id AS customer_id, c.name AS customer, c.discount as customer_discount, c.creditlimit, c.terms,
+         c.id AS customer_id, c.name AS customer, c.discount as customer_discount, c.creditlimit,
          c.email, c.cc, c.bcc, c.language_id, c.payment_id, c.delivery_term_id,
          c.street, c.zipcode, c.city, c.country,
-         c.notes AS intnotes, c.klass as customer_klass, c.taxzone_id, c.salesman_id, cu.name AS curr,
+         c.notes AS intnotes, c.pricegroup_id as customer_pricegroup_id, c.taxzone_id, c.salesman_id, cu.name AS curr,
          c.taxincluded_checked, c.direct_debit,
-         $duedate + COALESCE(pt.terms_netto, 0) AS duedate,
+         (SELECT aba.id
+          FROM additional_billing_addresses aba
+          WHERE aba.default_address
+          LIMIT 1) AS default_billing_address_id,
          b.discount AS tradediscount, b.description AS business
        FROM customer c
        LEFT JOIN business b ON (b.id = c.business_id)
-       LEFT JOIN payment_terms pt ON ($payment_id (c.payment_id = pt.id))
        LEFT JOIN currencies cu ON (c.currency_id=cu.id)
-       WHERE c.id = ?|;
-  push @values, $cid;
+       WHERE 1 = 1 $where|;
   $ref = selectfirst_hashref_query($form, $dbh, $query, @values);
 
   delete $ref->{salesman_id} if !$ref->{salesman_id};
+  delete $ref->{payment_id}  if !$ref->{payment_id};
 
   map { $form->{$_} = $ref->{$_} } keys %$ref;
 
+  if ($form->{payment_id}) {
+    my $reference_date = $form->{invdate} ? DateTime->from_kivitendo($form->{invdate}) : undef;
+    $form->{duedate}   = SL::DB::PaymentTerm->new(id => $form->{payment_id})->load->calc_date(reference_date => $reference_date)->to_kivitendo;
+  } else {
+    $form->{duedate}   = DateTime->today_local->to_kivitendo;
+  }
+
   # use customer currency
   $form->{currency} = $form->{curr};
 
@@ -2038,46 +2502,6 @@ sub get_customer {
   }
   $sth->finish;
 
-  # setup last accounts used for this customer
-  if (!$form->{id} && $form->{type} !~ /_(order|quotation)/) {
-    $query =
-      qq|SELECT c.id, c.accno, c.description, c.link, c.category
-         FROM chart c
-         JOIN acc_trans ac ON (ac.chart_id = c.id)
-         JOIN ar a ON (a.id = ac.trans_id)
-         WHERE a.customer_id = ?
-           AND NOT (c.link LIKE '%_tax%' OR c.link LIKE '%_paid%')
-           AND a.id IN (SELECT max(a2.id) FROM ar a2 WHERE a2.customer_id = ?)|;
-    $sth = prepare_execute_query($form, $dbh, $query, $cid, $cid);
-
-    my $i = 0;
-    while ($ref = $sth->fetchrow_hashref('NAME_lc')) {
-      if ($ref->{category} eq 'I') {
-        $i++;
-        $form->{"AR_amount_$i"} = "$ref->{accno}--$ref->{description}";
-
-        if ($form->{initial_transdate}) {
-          my $tax_query =
-            qq|SELECT tk.tax_id, t.rate
-               FROM taxkeys tk
-               LEFT JOIN tax t ON tk.tax_id = t.id
-               WHERE (tk.chart_id = ?) AND (startdate <= date(?))
-               ORDER BY tk.startdate DESC
-               LIMIT 1|;
-          my ($tax_id, $rate) =
-            selectrow_query($form, $dbh, $tax_query, $ref->{id},
-                            $form->{initial_transdate});
-          $form->{"taxchart_$i"} = "${tax_id}--${rate}";
-        }
-      }
-      if ($ref->{category} eq 'A') {
-        $form->{ARselected} = $form->{AR_1} = $ref->{accno};
-      }
-    }
-    $sth->finish;
-    $form->{rowcount} = $i if ($i && !$form->{type});
-  }
-
   $main::lxdebug->leave_sub();
 }
 
@@ -2098,7 +2522,7 @@ sub retrieve_item {
     my ($table, $field) = split m/\./, $column;
     next if !$form->{"${field}_${i}"};
     $where .= qq| AND lower(${column}) ILIKE ?|;
-    push @values, '%' . $form->{"${field}_${i}"} . '%';
+    push @values, like($form->{"${field}_${i}"});
   }
 
   my (%mm_by_id);
@@ -2110,7 +2534,7 @@ sub retrieve_item {
     my $mm_query = qq|
       SELECT parts_id, model FROM makemodel LEFT JOIN parts ON parts.id = parts_id WHERE NOT parts.obsolete AND model ILIKE ?;
     |;
-    my $mm_results = selectall_hashref_query($::form, $dbh, $mm_query, '%' . $form->{"partnumber_$i"} . '%');
+    my $mm_results = selectall_hashref_query($::form, $dbh, $mm_query, like($form->{"partnumber_$i"}));
     my @mm_ids     = map { $_->{parts_id} } @$mm_results;
     push @{$mm_by_id{ $_->{parts_id} } ||= []}, $_ for @$mm_results;
 
@@ -2150,8 +2574,9 @@ sub retrieve_item {
   my $query =
     qq|SELECT
          p.id, p.partnumber, p.description, p.sellprice,
-         p.listprice, p.inventory_accno_id, p.lastcost,
-         p.ean,
+         p.listprice, p.part_type, p.lastcost,
+         p.ean, p.notes,
+         p.classification_id,
 
          c1.accno AS inventory_accno,
          c1.new_chart_id AS inventory_new_chart,
@@ -2165,13 +2590,13 @@ sub retrieve_item {
          c3.new_chart_id AS expense_new_chart,
          date($transdate) - c3.valid_from AS expense_valid,
 
-         p.unit, p.assembly, p.onhand,
+         p.unit, p.part_type, p.onhand,
          p.notes AS partnotes, p.notes AS longdescription,
          p.not_discountable, p.formel, p.payment_id AS part_payment_id,
          p.price_factor_id, p.weight,
 
          pfac.factor AS price_factor,
-
+         pt.used_for_sale AS used_for_sale,
          pg.partsgroup
 
        FROM parts p
@@ -2188,6 +2613,7 @@ sub retrieve_item {
            FROM taxzone_charts tc
            WHERE tc.buchungsgruppen_id = p.buchungsgruppen_id and tc.taxzone_id = ${taxzone_id}) = c3.id)
        LEFT JOIN partsgroup pg ON (pg.id = p.partsgroup_id)
+       LEFT JOIN part_classifications pt ON (pt.id = p.classification_id)
        LEFT JOIN price_factors pfac ON (pfac.id = p.price_factor_id)
        WHERE $where|;
   my $sth = prepare_execute_query($form, $dbh, $query, @values);
@@ -2205,6 +2631,7 @@ sub retrieve_item {
                                    LIMIT 1| ] );
   map { push @{ $_ }, prepare_query($form, $dbh, $_->[0]) } @translation_queries;
 
+  my $has_wrong_pclass = PCLASS_OK;
   while (my $ref = $sth->fetchrow_hashref('NAME_lc')) {
 
     if ($mm_by_id{$ref->{id}}) {
@@ -2212,10 +2639,16 @@ sub retrieve_item {
       push @{ $ref->{matches} ||= [] }, $::locale->text('Model') . ': ' . join ', ', map { $_->{model} } @{ $mm_by_id{$ref->{id}} };
     }
 
-    if ($ref->{ean} eq $::form->{"partnumber_$i"}) {
+    if (($::form->{"partnumber_$i"} ne '') && ($ref->{ean} eq $::form->{"partnumber_$i"})) {
       push @{ $ref->{matches} ||= [] }, $::locale->text('EAN') . ': ' . $ref->{ean};
     }
 
+    $ref->{type_and_classific} = type_abbreviation($ref->{part_type}) .
+                                 classification_abbreviation($ref->{classification_id});
+    if (! $ref->{used_for_sale} ) {
+      $has_wrong_pclass = PCLASS_NOTFORSALE ;
+      next;
+    }
     # In der Buchungsgruppe ist immer ein Bestandskonto verknuepft, auch wenn
     # es sich um eine Dienstleistung handelt. Bei Dienstleistungen muss das
     # Buchungskonto also aus dem Ergebnis rausgenommen werden.
@@ -2244,7 +2677,7 @@ sub retrieve_item {
     # get tax rates and description
     my $accno_id = ($form->{vc} eq "customer") ? $ref->{income_accno} : $ref->{expense_accno};
     $query =
-      qq|SELECT c.accno, t.taxdescription, t.rate, t.taxnumber
+      qq|SELECT c.accno, t.taxdescription, t.id as tax_id, t.rate, c.accno as taxnumber
          FROM tax t
          LEFT JOIN chart c ON (c.id = t.chart_id)
          WHERE t.id in
@@ -2273,6 +2706,7 @@ sub retrieve_item {
         $form->{"$ptr->{accno}_rate"}        = $ptr->{rate};
         $form->{"$ptr->{accno}_description"} = $ptr->{taxdescription};
         $form->{"$ptr->{accno}_taxnumber"}   = $ptr->{taxnumber};
+        $form->{"$ptr->{accno}_tax_id"}      = $ptr->{tax_id};
         $form->{taxaccounts} .= "$ptr->{accno} ";
       }
 
@@ -2293,21 +2727,22 @@ sub retrieve_item {
     }
 
     $ref->{onhand} *= 1;
-
     push @{ $form->{item_list} }, $ref;
   }
   $sth->finish;
   $_->[1]->finish for @translation_queries;
 
+  $form->{is_wrong_pclass} = $has_wrong_pclass;
+  $form->{NOTFORSALE}      = PCLASS_NOTFORSALE;
+  $form->{NOTFORPURCHASE}  = PCLASS_NOTFORPURCHASE;
   foreach my $item (@{ $form->{item_list} }) {
     my $custom_variables = CVar->get_custom_variables(module   => 'IC',
                                                       trans_id => $item->{id},
                                                       dbh      => $dbh,
                                                      );
-
+    $form->{is_wrong_pclass} = PCLASS_OK; # one correct type
     map { $item->{"ic_cvar_" . $_->{name} } = $_->{value} } @{ $custom_variables };
   }
-
   $main::lxdebug->leave_sub();
 }