diff --git a/Layout/default/Preorder/Index.php b/Layout/default/Preorder/Index.php
index e3a4002d2..e912d9909 100644
--- a/Layout/default/Preorder/Index.php
+++ b/Layout/default/Preorder/Index.php
@@ -512,6 +512,14 @@ $pagination_entity_name = "Vorbestellungen";
 
     <script type="text/javascript">
         $(document).ready(function() {
+            $(".datepicker").datepicker({
+                //orientation: "bottom",
+                language: 'de',
+                format: "dd.mm.yyyy",
+                showWeekDays: true,
+                todayBtn: 'linked',
+                autoclose: true
+            });
             $("#filter_type").select2({closeOnSelect: false});
             $("#filter_status").select2({closeOnSelect: false});
             $("#filter_partner_id").select2({closeOnSelect: false});
@@ -1195,6 +1203,62 @@ $pagination_entity_name = "Vorbestellungen";
                 'json');
         }
 
+        function toggleActivationdateControl(pid) {
+            // set select to current status id
+            //$("#preorder-detail-activationdate-" + pid + "-input select").val($("#preorder-detail-activationdate-" + pid + "-text").data("activationdate"));
+
+            // toggle controls
+            $("#preorder-detail-activationdate-" + pid + "-text").toggle();
+            $("#preorder-detail-activationdate-" + pid + "-input").toggle();
+
+            return false;
+        }
+
+        function savePreorderActivationdateControl(pid) {
+            if(!Number.isInteger(pid) || pid < 1) {
+                return false;
+            }
+
+            var value = $("#preorder-detail-activationdate-" + pid + "-input input").val();
+
+            //console.log("add opacity-5 to ")
+            $("#preorder-" + pid + "-body").addClass("opacity-5");
+            $("#preorder-" + pid + "-body .loader-big").show();
+
+            // reset loading overlay if request times out
+            setTimeout(() => {
+                $("#preorder-" + pid + "-body").removeClass("opacity-5");
+                $("#preorder-" + pid + "-body .loader-big").hide();
+            }, 5000);
+
+            $.post("<?=self::getUrl("Preorder","Api")?>",
+                {
+                    'do': "saveActivationdate",
+                    id: pid,
+                    activation_date: value
+                },
+                function(success) {
+                    if(success.status == "OK") {
+                        console.log(success);
+                        var new_activationdate = success.result.activation_date;
+                        var pid = success.result.preorder_id;
+                        //console.log(updates);
+                        $("#preorder-detail-activationdate-" + pid + "-textpart").text(new_activationdate);
+                        $("#preorder-detail-activationdate-" + pid + "-input").val(new_activationdate);
+
+                        $("#preorder-detail-activationdate-" + pid + "-text").addClass("text-success");
+                        setTimeout(() => { $("#preorder-detail-activationdate-" + pid + "-text").removeClass("text-success") }, 1500);
+
+                        toggleActivationdateControl(pid);
+
+                    }
+
+                    $("#preorder-" + pid + "-body").removeClass("opacity-5");
+                    $("#preorder-" + pid + "-body .loader-big").hide();
+                },
+                'json');
+        }
+
         function createWorkorder(pid) {
             if(!Number.isInteger(pid) || pid < 1) {
                 return false;
diff --git a/Layout/default/Preorder/include/preorder-detail.php b/Layout/default/Preorder/include/preorder-detail.php
index 659d4481e..cae9dceaa 100644
--- a/Layout/default/Preorder/include/preorder-detail.php
+++ b/Layout/default/Preorder/include/preorder-detail.php
@@ -85,6 +85,20 @@
                             </div>
                         </td>
                       </tr><tr>
+                            <th>Aktivierungsdatum (Status 500):</th>
+                            <td>
+                                <?php if($preorder->getStatuschangeTo(500)): ?>
+                                <span id="preorder-detail-activationdate-<?=$preorder->id?>-text" data-activationdate="<?=($preorder->getStatuschangeTo(500)) ? (new DateTime("@".$preorder->getStatuschangeTo(500)))->format("d.m.Y") : ""?>"><span id="preorder-detail-activationdate-<?=$preorder->id?>-textpart"><?=($preorder->getStatuschangeTo(500)) ? (new DateTime("@".$preorder->getStatuschangeTo(500)))->format("d.m.Y") : ""?></span> <a href="#" onclick="return toggleActivationdateControl(<?=$preorder->id?>)"><i class="fas fa-fw fa-edit"></i></a></span>
+                                <div class="input-group" id="preorder-detail-activationdate-<?=$preorder->id?>-input" style="display:none">
+                                    <input type="text" class="form-control datepicker" value="<?=($preorder->getStatuschangeTo(500)) ? (new DateTime("@".$preorder->getStatuschangeTo(500)))->format("d.m.Y") : ""?>" />
+                                    <div class="input-group-append">
+                                        <button type="button" class="btn btn-primary" title="Speichern" onclick="savePreorderActivationdateControl(<?=$preorder->id?>)"><i class="fas fa-check"></i></button>
+                                        <button type="button" class="btn btn-secondary" title="Abbrechen" onclick="toggleActivationdateControl(<?=$preorder->id?>)"><i class="fas fa-times"></i></button>
+                                    </div>
+                                </div>
+                                <?php endif; ?>
+                            </td>
+                        </tr><tr>
                         <th>Erstellt:</th>
                         <td class="text-monospace"><?=date("d.m.Y H:i",$preorder->create)?> (<?=$preorder->creator->name?>)</td>
                       </tr><tr>
diff --git a/application/Api/v1/AddressdbApicontroller.php b/application/Api/v1/AddressdbApicontroller.php
index ce412aa2f..5d1b34f65 100644
--- a/application/Api/v1/AddressdbApicontroller.php
+++ b/application/Api/v1/AddressdbApicontroller.php
@@ -929,28 +929,24 @@ class AddressdbApicontroller extends mfBaseApicontroller {
         }
 
         $prices_return = [
-            "price_inet" => (float)$prices["operator_usage"]->price_inet,
-            "price_inet_tv" => (float)$prices["operator_usage"]->price_inet_tv,
-            "price_catv" => (float)$prices["operator_usage"]->price_catv,
-
-            "operator_setup_price" => (float)$prices["operator_setup"]->price_setup,
-            "operator_setup_info" => $prices["operator_setup"]->description,
-            "operator_setup_valid_until" => $prices["operator_setup"]->end_date,
-
-            "enduser_setup_price" => (float)$prices["enduser_setup"]->price_setup,
+            "oaid" => $oaid,
+            "enduser_setup_price_net" => (float)$prices["enduser_setup"]->price_setup,
+            "enduser_setup_price_gross" => (float)$prices["enduser_setup"]->price_setup * 1.2,
             "enduser_setup_info" => $prices["enduser_setup"]->description,
             "enduser_setup_valid_until" => $prices["enduser_setup"]->end_date,
 
             "vatrate" => 20,
         ];
 
-        if(PreorderBilling::getFirst(["adb_wohneinheit_id" => $unit->id, "product_id" => $enduser_setup_product_id])) {
-            $prices_return["enduser_setup_price"] = 0;
+        //$paid = $unit->enduser_setup_paid;
+        if(PreorderBilling::getFirst(["adb_wohneinheit_id" => $unit->id, "product_id" => $enduser_setup_product_id, "invoice_id" => false])) {
+            $prices_return["enduser_setup_price_net"] = 0;
+            $prices_return["enduser_setup_price_gross"] = 0;
             $prices_return["enduser_setup_info"] = "paid";
             $prices_return["enduser_setup_valid_until"] = null;
         }
 
-        return mfResponse::Ok(['oaid' => $oaid, 'prices' => $prices_return]);
+        return mfResponse::Ok($prices_return);
     }
 
     protected function exportAddresses() {
diff --git a/application/Api/v1/Modules/Preorder/Activation.php b/application/Api/v1/Modules/Preorder/Activation.php
index a669547bf..5aeee653e 100644
--- a/application/Api/v1/Modules/Preorder/Activation.php
+++ b/application/Api/v1/Modules/Preorder/Activation.php
@@ -21,6 +21,11 @@ class Activation extends Modules\ApiControllerModule {
     if($this->me->is("Preorderreadonly")) return \mfResponse::Forbidden();
 
     $code = trim($code);
+    $activation_date = false;
+    if(array_key_exists("activation_date", $this->get)) {
+        $activation_date = trim($this->get['activation_date']);
+    }
+
     if(!$code) {
       return \mfResponse::NotFound(["message" => "Preorder not found"]);
     }
@@ -42,15 +47,42 @@ class Activation extends Modules\ApiControllerModule {
     if($preorder->partner_id != $this->me->address_id) {
       return \mfResponse::NotFound(["message" => "Preorder not found"]);
     }
-    
+
+
+    if($activation_date) {
+        try {
+            $adate = new \DateTime($activation_date);
+            $adate->setTimezone(new \DateTimeZone("Europe/Vienna"));
+            $adate->setTime(2, 0, 0); // set time to 2:00:00
+            // activation date cannot be in the future
+            if($adate > new \DateTime()) {
+                return \mfResponse::BadRequest(["message" => "Activation date can only be in the past"]);
+            }
+        } catch(\Exception $e) {
+            return \mfResponse::BadRequest(["message" => "Invalid activation_date format"]);
+        }
+    }
+
     // set status to 500
     if($preorder->status->code < 500) {
+      if($preorder->status->code < 242) {
+        return \mfResponse::BadRequest(["message" => "Service cannot be activated, because Construction work is not yet finished"]);
+      }
+
       $new_status = \PreorderstatusModel::getFirst(["code" => 500]);
       if(!$new_status) {
         return \mfResponse::InternalServerError();
       }
       $preorder->status_id = $new_status->id;
       $preorder->save();
+
+      if($adate) {
+          $history = \PreorderHistoryModel::getLastStatusChangeTo($preorder->id, 500);
+          if($history) {
+              $history->changed = $adate->getTimestamp();
+              $history->save();
+          }
+      }
     }
     
     return \mfResponse::Ok(["message" => "Status successfully updated."]);
diff --git a/application/Api/v1/PreorderApicontroller.php b/application/Api/v1/PreorderApicontroller.php
index 08dc84c99..07226ec11 100644
--- a/application/Api/v1/PreorderApicontroller.php
+++ b/application/Api/v1/PreorderApicontroller.php
@@ -856,11 +856,31 @@ class PreorderApicontroller extends mfBaseApicontroller {
         }
 
         if(trim($this->post['orderDate'])) {
-            $order_date = trim($this->post['orderDate']);
+            try {
+                $order_date = new DateTime(trim($this->post['orderDate']));
+                $order_date->setTime(4, 0, 0);
+                $order_date->setTimezone(new DateTimeZone('Europe/Vienna'));
+
+                // cannot be older than 14 days
+                $now = new DateTime();
+                $now->setTime(4, 0, 0);
+                $now->setTimezone(new DateTimeZone('Europe/Vienna'));
+                $diff = $now->diff($order_date);
+                if($diff->days > 14) {
+                    return mfResponse::BadRequest(["message" => "orderDate cannot be older than 14 days"]);
+                }
+                $preorder_data['order_date'] = $order_date->getTimestamp();
+            } catch(Exception $e) {
+                $this->log->debug(__METHOD__.": Error parsing orderDate: " . $e->getMessage());
+                // ignore
+            }
+
+
+            /*$order_date = trim($this->post['orderDate']);
             $m = [];
             if(preg_match('/^(\d\d\d\d)-(\d\d)-(\d\d)$/', $order_date, $m)) {
                 $preorder_data['order_date'] = mktime(4, 0, 0, $m[2], $m[3], $m[1]);
-            }
+            }*/
         }
 
         if($is_additional_order) {
diff --git a/application/Preorder/Preorder.php b/application/Preorder/Preorder.php
index 69e097ee5..a79e157d8 100644
--- a/application/Preorder/Preorder.php
+++ b/application/Preorder/Preorder.php
@@ -99,6 +99,20 @@ class Preorder extends mfBaseModel {
         mfValuecache::singleton()->delete("preorder-save-nesting-level-" . $this->id);
     }
 
+    public function getStatuschangeTo($status_code) {
+        $status = PreorderstatusModel::getFirst(["code" => $status_code]);
+        if(!$status) {
+            return false;
+        }
+
+        $history = PreorderHistoryModel::getLastStatusChangeTo($this->id, $status_code);
+        if(!$history) {
+            return false;
+        }
+
+        return $history->changed;
+    }
+
     public function updateRimoWorkorderContact() {
         $contact_fields = [
             "company",
@@ -141,7 +155,8 @@ class Preorder extends mfBaseModel {
                     "preorder_id" => $this->id,
                     "key" => $field,
                     "old_value" => $this->_old_data->$field,
-                    "new_value" => $this->data->$field
+                    "new_value" => $this->data->$field,
+                    "changed" => date("U")
                 ]);
                 $history->save();
             }
diff --git a/application/Preorder/PreorderController.php b/application/Preorder/PreorderController.php
index 1def2ffe4..b1c223a2b 100644
--- a/application/Preorder/PreorderController.php
+++ b/application/Preorder/PreorderController.php
@@ -1064,6 +1064,9 @@ class PreorderController extends mfBaseController {
             case "saveOrderdate":
                 $return = $this->saveOrderdateApi();
                 break;
+            case "saveActivationdate":
+                $return = $this->saveActivationdateApi();
+                break;
             default:
                 $return = false;
         }
@@ -1097,6 +1100,34 @@ class PreorderController extends mfBaseController {
         return ["message" => "Orderdate saved successfully", "preorder_id" => $preorder_id, "order_date" => $order_date];
     }
 
+    private function saveActivationdateApi() {
+        $preorder_id = $this->request->id;
+        $activation_date = $this->request->activation_date;
+
+        $preorder = new Preorder($preorder_id);
+        if(!$preorder->id) {
+            $this->log->debug(__METHOD__.": preorder ($preorder_id) not found");
+            return false;
+        }
+
+        try {
+            $activationdate = DateTime::createFromFormat("d.m.Y", $activation_date, new DateTimeZone("Europe/Vienna"));
+            $activationdate->getTimestamp();
+        } catch(Exception $e) {
+            return false;
+        }
+
+        $history = PreorderHistoryModel::getLastStatusChangeTo($preorder->id, 500);
+        if(!$history) {
+            return false;
+        }
+
+        $history->changed = $activationdate->getTimestamp();
+        $history->save();
+
+        return ["message" => "Activationdate saved successfully", "preorder_id" => $preorder_id, "activation_date" => $activation_date];
+    }
+
     private function addWorkorderRemarkApi() {
         $preorder_id = $this->request->preorder_id;
         $workorder_id = $this->request->workorder_id;
diff --git a/application/PreorderBilling/PreorderBilling.php b/application/PreorderBilling/PreorderBilling.php
index 971099447..91fdd64af 100644
--- a/application/PreorderBilling/PreorderBilling.php
+++ b/application/PreorderBilling/PreorderBilling.php
@@ -199,12 +199,12 @@ class PreorderBilling extends mfBaseModel {
 
         if(array_key_exists("invoice_id", $filter)) {
             $invoice_id = $filter['invoice_id'];
-            if(is_numeric($invoice_id)) {
-                $where .= " AND PreorderBilling.invoice_id=$invoice_id";
-            } elseif($invoice_id === null || $invoice_id === false) {
+            if($invoice_id === null || $invoice_id === false) {
                 $where .= " AND (PreorderBilling.invoice_id IS NULL OR PreorderBilling.invoice_id=0)";
             } elseif($invoice_id === true) {
                 $where .= " AND (PreorderBilling.invoice_id IS NOT NULL AND PreorderBilling.invoice_id > 0)";
+            } elseif(is_numeric($invoice_id)) {
+                $where .= " AND PreorderBilling.invoice_id=$invoice_id";
             }
         }
 
diff --git a/application/PreorderBilling/PreorderBillingController.php b/application/PreorderBilling/PreorderBillingController.php
index 1679838dd..d12b34ecb 100644
--- a/application/PreorderBilling/PreorderBillingController.php
+++ b/application/PreorderBilling/PreorderBillingController.php
@@ -255,7 +255,7 @@ class PreorderBillingController extends mfBaseController {
 
         if($preorder->status->code >= 899) {
             // TODO is canceled, need to determine if setup still needs to be billed
-            $this->log->debug(__METHOD__." already cancelled");
+            $this->log->debug(__METHOD__.": already cancelled");
             return true;
         }
 
@@ -263,14 +263,14 @@ class PreorderBillingController extends mfBaseController {
         $product->setNetoperatorId($netoperator->id);
         $price = $product->getCampaignPrice($preorder->preordercampaign_id, $order_date->format("Y-m-d"));
         if(!$price) {
-            die("operator_setup price not found for campaign ".$preorder->preordercampaign_id." and date ".$order_date->format("Y-m-d"));
+            die("operator_setup price not found for netoperator ".$netoperator->id.", campaign ".$preorder->preordercampaign_id." and date ".$order_date->format("Y-m-d"));
         }
 
         // check for existing billing record
         //var_dump($product);
         if(PreorderBilling::getFirst(["preorder_id" => $preorder->id, "product_id" => $product->id])) {
             //echo "billing record exists\n<br />";
-            $this->log->debug(__METHOD__."billing record exists");
+            $this->log->debug(__METHOD__.": billing record exists");
             return true; // already billed
         }
 
@@ -432,7 +432,7 @@ class PreorderBillingController extends mfBaseController {
 
         //var_dump($product, $price);exit;
 
-        $status_change = PreorderHistoryModel::getFirstStatusChangeToOrHigher($preorder->id, 500);
+        $status_change = PreorderHistoryModel::getLastStatusChangeTo($preorder->id, 500);
         if(!$status_change) {
             $this->log->debug(__METHOD__.": No status change to 500 found for preorder ".$preorder->id." so using creation date");
             $status_change = $preorder;
diff --git a/application/PreorderHistory/PreorderHistory.php b/application/PreorderHistory/PreorderHistory.php
index fb6c13409..61d4066cd 100644
--- a/application/PreorderHistory/PreorderHistory.php
+++ b/application/PreorderHistory/PreorderHistory.php
@@ -9,6 +9,35 @@ class PreorderHistory extends mfBaseModel {
     private $old;
     private $new;
 
+    public function afterSave() {
+        $this->createHistoryEntry();
+    }
+
+    protected function createHistoryEntry() {
+        if(!$this->id) return true;
+
+        $changed = $this->getChangedFields();
+
+        if($this->key == "status_id" && in_array("changed", $changed) && $this->_old_data->changed) {
+            try {
+                $status = new Preorderstatus($this->new_value);
+                if(!$status->id) return true;
+
+                $this->log->debug(__METHOD__ . ": 'changed' changed from '" . $this->_old_data->changed . "' to '" . $this->data->changed . "'");
+                $history = PreorderHistoryModel::create([
+                    "preorder_id" => $this->preorder_id,
+                    "key" => "status_changed-".$status->code,
+                    "old_value" => $this->_old_data->changed,
+                    "new_value" => $this->data->changed,
+                    "changed" => date("U")
+                ]);
+                $history->save();
+            } catch(Exception $e) {
+                $this->log->debug($e->getTraceAsString());
+            }
+        }
+    }
+
     public function getValue($type = "new", $raw = false) {
         if($type != "old" && $type != "new") return null;
 
@@ -51,6 +80,16 @@ class PreorderHistory extends mfBaseModel {
                 return "Status Flag ".$psf->code." - ".$psf->name;
             }
         }
+        if(preg_match('/status_changed-(\d+)/', $key, $m)) {
+            if(array_key_exists(1, $m)) {
+                $code = $m[1];
+                $ps = PreorderstatusModel::getFirst(["code" => $code]);
+                if($code == 500) {
+                    return "Aktivierungsdatum (Status 500)";
+                }
+                return "Status ".$ps->code." Timestamp";
+            }
+        }
         return $key;
     }
 
@@ -73,6 +112,10 @@ class PreorderHistory extends mfBaseModel {
             return date("d.m.Y", $value);
         }
 
+        if(preg_match('/^status_changed-/', $this->key)) {
+            return date("d.m.Y", $value);
+        }
+
         if(!is_object($value)) {
             return $value;
         }
diff --git a/application/PreorderHistory/PreorderHistoryModel.php b/application/PreorderHistory/PreorderHistoryModel.php
index 4e86eeb1f..0552dff68 100644
--- a/application/PreorderHistory/PreorderHistoryModel.php
+++ b/application/PreorderHistory/PreorderHistoryModel.php
@@ -6,6 +6,7 @@ class PreorderHistoryModel {
     public $key;
     public $old_value;
     public $new_value;
+    public $changed;
     public $create_by;
     public $edit_by;
     public $create;
@@ -47,9 +48,9 @@ class PreorderHistoryModel {
         $status_id = $status->id;
         $sql = "SELECT * FROM PreorderHistory WHERE preorder_id = $preorder_id AND `key` = 'status_id' AND new_value = $status_id";
         if($type == "first") {
-            $sql .= " ORDER BY id ASC LIMIT 1";
+            $sql .= " ORDER BY `create` ASC LIMIT 1";
         } else {
-            $sql .= " ORDER BY id DESC LIMIT 1";
+            $sql .= " ORDER BY `create` DESC LIMIT 1";
         }
         //mfLoghandler::singleton()->debug($sql);
         $res = FronkDB::singleton()->query($sql);
diff --git a/application/PreordercampaignOperatorIsp/PreordercampaignOperatorIspModel.php b/application/PreordercampaignOperatorIsp/PreordercampaignOperatorIspModel.php
index 4220f390d..30805400a 100644
--- a/application/PreordercampaignOperatorIsp/PreordercampaignOperatorIspModel.php
+++ b/application/PreordercampaignOperatorIsp/PreordercampaignOperatorIspModel.php
@@ -52,28 +52,13 @@ class PreordercampaignOperatorIspModel {
         $db = FronkDB::singleton();
 
         $where = self::getSqlFilter($filter);
+        $sql = "SELECT PreordercampaignOperatorIsp.* FROM PreordercampaignOperatorIsp
+                LEFT JOIN PreordercampaignOperator ON (PreordercampaignOperatorIsp.campaignoperator_id = PreordercampaignOperator.id)
+                WHERE $where
+                ORDER BY id
+                LIMIT 1";
         mfLoghandler::singleton()->debug($where);
-        $res = $db->select("PreordercampaignOperatorIsp", "*", "$where ORDER BY id");
-        if($db->num_rows($res)) {
-            $data = $db->fetch_object($res);
-            $item = new PreordercampaignOperatorIsp($data);
-            if($item->id) {
-                return $item;
-            } else {
-                return null;
-            }
-        }
-        return null;
-    }
-
-    public static function getFirstOaid($oaid) {
-        $db = FronkDB::singleton();
-
-        if(!$oaid) return null;
-
-        $where = self::getSqlFilter(["oaid" => $oaid]);
-        //mfLoghandler::singleton()->debug($where);
-        $res = $db->select("PreordercampaignOperatorIsp", "*", "$where ORDER BY id");
+        $res = $db->query($sql);
         if($db->num_rows($res)) {
             $data = $db->fetch_object($res);
             $item = new PreordercampaignOperatorIsp($data);
@@ -90,8 +75,9 @@ class PreordercampaignOperatorIspModel {
         $db = FronkDB::singleton();
 
         $where = self::getSqlFilter($filter);
-        $sql = "SELECT COUNT(*) as cnt FROM PreordercampaignOperatorIsp
-            WHERE $where
+        $sql = "SELECT COUNT(PreordercampaignOperatorIsp.*) as cnt FROM PreordercampaignOperatorIsp
+                LEFT JOIN PreordercampaignOperator ON (PreordercampaignOperatorIsp.campaignoperator_id = PreordercampaignOperator.id)
+                WHERE $where
            ";
 
         $res = $db->query($sql);
@@ -107,9 +93,10 @@ class PreordercampaignOperatorIspModel {
         $db = FronkDB::singleton();
 
         $where = self::getSqlFilter($filter);
-        $sql = "SELECT * FROM PreordercampaignOperatorIsp
-            WHERE $where
-            ORDER BY id";
+        $sql = "SELECT PreordercampaignOperatorIsp.* FROM PreordercampaignOperatorIsp
+                 LEFT JOIN PreordercampaignOperator ON (PreordercampaignOperatorIsp.campaignoperator_id = PreordercampaignOperator.id)
+                WHERE $where
+                ORDER BY id";
 
         if(is_array($limit) && count($limit)) {
             if(is_numeric($limit['start']) && is_numeric($limit['count'])) {
@@ -153,6 +140,14 @@ class PreordercampaignOperatorIspModel {
             }
         }
 
+        if(array_key_exists("preordercampaign_id", $filter)) {
+            $preordercampaign_id = $filter['preordercampaign_id'];
+            if(is_numeric($preordercampaign_id)) {
+                $where .= " AND preordercampaign_id = $preordercampaign_id";
+            }
+        }
+
+
         //var_dump($filter, $where);exit;
         return $where;
     }
diff --git a/public/docs/preorder-api.yaml b/public/docs/preorder-api.yaml
index a9f5e2772..d60fa89fe 100644
--- a/public/docs/preorder-api.yaml
+++ b/public/docs/preorder-api.yaml
@@ -234,6 +234,69 @@ paths:
             Parameter missing or malformed
         '401':
           description: Unauthorized
+  /addressdb/{oaid}/pricing:
+    get:
+      tags:
+        - addressdb
+      summary: Liefert Endkundenpreise
+      description: Liefert Endkundenpreise für die angegebene Adresse
+      operationId: getAddressPricing
+      parameters:
+        - name: oaid
+          description: "**OAID** der Wohneinheit; Wie in `searchAddress` oder `findAddress` zurückgegeben. Preise sind `0`, wenn Herstellungsentgelt bereits bezahlt wurde."
+          in: path
+          schema:
+            type: string
+          required: true
+      responses:
+        '200':
+          description: Successful operation
+          content:
+            application/json:
+              schema:
+                type: object
+                properties:
+                  status:
+                    type: string
+                    description: Status string
+                    example: OK
+                  result:
+                    type: object
+                    properties:
+                      oaid:
+                        type: string
+                        description: OAID der Wohneinheit
+                        example: "AT-9999-abcdef01"
+                      enduser_setup_price_net:
+                        type: number
+                        description: Herstellungsentgelt für Endkunde Netto
+                        example: 1250
+                      enduser_setup_price_gross:
+                        type: number
+                        description: Herstellungsentgelt für Endkunde Brutto
+                        example: 1500
+                      enduser_setup_info:
+                        type: string
+                        description: Zusätzliche Information zum Preis
+                        example: Rabattaktion in Gemeinde
+                        nullable: true
+                      enduser_setup_valid_until:
+                        type: string
+                        format: date-time
+                        description: Gültigkeitsdatum des Herstellungsentgelts, sofern in Aktionszeitraum, sonst `null`
+                        example: "2025-05-31"
+                        nullable: true
+                      vatrate:
+                        type: number
+                        description: "Mehrwertsteuersatz in %"
+                        example: 20
+        '400':
+          description: |
+            Bad Request
+
+            Parameter missing or malformed
+        '401':
+          description: Unauthorized
   /addressdb/findStreet:
     get:
       tags:
@@ -831,8 +894,8 @@ paths:
       tags:
         - preorder
       summary: Bestellung auf Status 500 - Fertiggestellt setzen
-      description: Setzt Status der Bestellung auf 500 - Fertiggestellt. Wird gesetzt, wenn beim Kunden alle Installationsarbeiten abgeschlossen sind und der Service aktiv ist.
-      operationId: setInhouseIntallationFinished
+      description: Setzt Status der Bestellung auf 500 - Fertiggestellt. Wird gesetzt, wenn beim Kunden alle Installationsarbeiten abgeschlossen sind und der Service aktiv ist. Optional mit Aktivierungsdateum
+      operationId: setInhouseIntallationFinishedWithActivationDate
       parameters:
         - name: id
           in: path
@@ -840,6 +903,13 @@ paths:
           required: true
           schema:
             type: string
+        - name: activation_date
+          in: query
+          description: (Optional) Tatsächliches Aktivierungsdatum bei nachträglicher Aktivmeldung. Muss in der Vergangenheit liegen. ISO 8601 Format
+          required: false
+          schema:
+            type: string
+            format: date-time
       responses:
         '200':
           description: Successful operation
@@ -1262,7 +1332,7 @@ components:
         orderDate:
           type: string
           format: date
-          description: Bestell- oder Vertragsdatum ISO 8601 Format
+          description: Bestell- oder Vertragsdatum ISO 8601 Format. Darf nicht älter als 14 Tage sein
           example: "2023-02-01"
         preorderType:
           type: string