diff --git a/api/public/schema/Datamodel_Modelio.zip b/api/public/schema/Datamodel_Modelio.zip
index 3f2bce47..34050f47 100644
Binary files a/api/public/schema/Datamodel_Modelio.zip and b/api/public/schema/Datamodel_Modelio.zip differ
diff --git a/api/public/schema/datamodel.pdf b/api/public/schema/datamodel.pdf
index 44592dd6..6a58dd10 100644
Binary files a/api/public/schema/datamodel.pdf and b/api/public/schema/datamodel.pdf differ
diff --git a/api/public/schema/openapi.yaml b/api/public/schema/openapi.yaml
index 88d2b2be..9c0bd776 100644
--- a/api/public/schema/openapi.yaml
+++ b/api/public/schema/openapi.yaml
@@ -3305,6 +3305,9 @@ components:
         paymentUrl:
           readOnly: true
           type: string
+        remark:
+          description: 'Remarks on this invoice'
+          type: string
       required:
         - name
         - targetOrganization
@@ -3357,6 +3360,9 @@ components:
           externalDocs:
             url: 'http://schema.org/url'
           type: string
+        remark:
+          description: 'Remarks on this invoice'
+          type: string
     'Invoice:jsonld-read':
       type: object
       description: 'An entity representing an invoice.'
@@ -3431,6 +3437,9 @@ components:
         paymentUrl:
           readOnly: true
           type: string
+        remark:
+          description: 'Remarks on this invoice'
+          type: string
       required:
         - name
         - targetOrganization
@@ -3492,6 +3501,9 @@ components:
           externalDocs:
             url: 'http://schema.org/url'
           type: string
+        remark:
+          description: 'Remarks on this invoice'
+          type: string
     InvoiceItem-read:
       type: object
       description: 'An entity representing an item of an invoice.'
@@ -3532,7 +3544,12 @@ components:
         taxPercentage:
           description: 'The tax percentage for this offer as an integer e.g. 9% makes 9'
           type: integer
-        createdAt:
+        dateCreated:
+          readOnly: true
+          description: 'The moment this request was created by the submitter'
+          type: string
+          format: date-time
+        dateModified:
           readOnly: true
           description: 'The moment this request was created by the submitter'
           type: string
@@ -3635,7 +3652,12 @@ components:
         taxPercentage:
           description: 'The tax percentage for this offer as an integer e.g. 9% makes 9'
           type: integer
-        createdAt:
+        dateCreated:
+          readOnly: true
+          description: 'The moment this request was created by the submitter'
+          type: string
+          format: date-time
+        dateModified:
           readOnly: true
           description: 'The moment this request was created by the submitter'
           type: string
@@ -4109,6 +4131,9 @@ definitions:
         example: 'https://example.org/people/1'
         format: url
       paymentUrl: []
+      remark:
+        description: 'Remarks on this invoice'
+        type: string
       items:
         description: 'The items in this invoice'
         type: \ArrayCollection
@@ -4159,6 +4184,9 @@ definitions:
         type: string
         example: 'https://example.org/people/1'
         format: url
+      remark:
+        description: 'Remarks on this invoice'
+        type: string
       items:
         description: 'The items in this invoice'
         type: \ArrayCollection
@@ -4212,7 +4240,10 @@ definitions:
         description: 'The tax percentage for this offer as an integer e.g. 9% makes 9'
         type: int
         example: '9'
-      createdAt:
+      dateCreated:
+        description: 'The moment this request was created by the submitter'
+        type: \DateTime
+      dateModified:
         description: 'The moment this request was created by the submitter'
         type: \DateTime
       invoice:
diff --git a/api/src/Entity/Invoice.php b/api/src/Entity/Invoice.php
index 0acd4bad..2db61533 100644
--- a/api/src/Entity/Invoice.php
+++ b/api/src/Entity/Invoice.php
@@ -234,6 +234,15 @@ class Invoice
      */
     private $paymentUrl;
 
+    /**
+     * @var string Remarks on this invoice
+     *
+     * @Groups({"read","write"})
+     *
+     * @ORM\Column(type="text", nullable=true)
+     */
+    private $remark;
+
     public function __construct()
     {
         $this->items = new ArrayCollection();
@@ -368,12 +377,12 @@ public function setDateCreated(DateTimeInterface $dateCreated): self
     }
     public function getDateModified(): ?DateTimeInterface
     {
-        return $this->dateCreated;
+        return $this->dateModified;
     }
 
-    public function setDateModified(DateTimeInterface $dateCreated): self
+    public function setDateModified(DateTimeInterface $dateModified): self
     {
-        $this->dateCreated = $dateCreated;
+        $this->dateModified = $dateModified;
 
         return $this;
     }
@@ -481,5 +490,17 @@ public function setPaymentUrl(?string $paymentUrl): self
         return $this;
     }
 
+    public function getRemark(): ?string
+    {
+        return $this->remark;
+    }
+
+    public function setRemark(?string $remark): self
+    {
+        $this->remark = $remark;
+
+        return $this;
+    }
+
 
 }
diff --git a/api/src/Entity/InvoiceItem.php b/api/src/Entity/InvoiceItem.php
index 8b780ef0..a11b133a 100644
--- a/api/src/Entity/InvoiceItem.php
+++ b/api/src/Entity/InvoiceItem.php
@@ -157,7 +157,16 @@ class InvoiceItem
      * @Gedmo\Timestampable(on="create")
      * @ORM\Column(type="datetime", nullable=true)
      */
-    private $createdAt;
+    private $dateCreated;
+
+    /**
+     * @var DateTime The moment this request was created by the submitter
+     *
+     * @Groups({"read"})
+     * @Gedmo\Timestampable(on="create")
+     * @ORM\Column(type="datetime", nullable=true)
+     */
+    private $dateModified;
 
     public function getId()
     {
@@ -282,14 +291,25 @@ public function setDescription(?string $description): self
         return $this;
     }
 
-    public function getCreatedAt(): ?\DateTimeInterface
+    public function getDateCreated(): ?\DateTimeInterface
+    {
+        return $this->dateCreated;
+    }
+
+    public function setDateCreated(?\DateTimeInterface $dateCreated): self
+    {
+        $this->dateCreated = $dateCreated;
+
+        return $this;
+    }
+    public function getDateModified(): ?\DateTimeInterface
     {
-        return $this->createdAt;
+        return $this->dateModified;
     }
 
-    public function setCreatedAt(?\DateTimeInterface $createdAt): self
+    public function setDateModified(?\DateTimeInterface $dateModified): self
     {
-        $this->createdAt = $createdAt;
+        $this->dateModified = $dateModified;
 
         return $this;
     }
diff --git a/api/src/Subscriber/InvoiceSubscriber.php b/api/src/Subscriber/InvoiceSubscriber.php
index e2456919..e72d088b 100644
--- a/api/src/Subscriber/InvoiceSubscriber.php
+++ b/api/src/Subscriber/InvoiceSubscriber.php
@@ -70,8 +70,6 @@ public function invoice(RequestEvent $event)
         $invoice->setPriceCurrency($order->priceCurrency);
         $invoice->setTax($order->tax);
         $invoice->setCustomer($order->customer);
-        //@TODO: ORC locatie inregelbaar maken
-        $invoice->setOrder('https://orc.larping.eu'.$order->_links->self->href);
         $organization = $this->em->getRepository('App:Organization')->findOrCreateByRsin($order->organization->rsin);
         if ($organization instanceof Organization)
         {