diff --git a/src/documentation/50.php-sdk.md b/src/documentation/50.php-sdk.md
index 40d8bb5c..943860b7 100644
--- a/src/documentation/50.php-sdk.md
+++ b/src/documentation/50.php-sdk.md
@@ -42,7 +42,7 @@ This example uses only the required methods to create a shipment and download
 its label.
 
 ```php
-$consignment = (ConsignmentFactory::createByCarrierId(PostNLConsignment::CARRIER_ID))
+$consignment = (ConsignmentFactory::createByCarrierId(CarrierPostNL::ID))
     ->setApiKey('api_key_from_backoffice')
     ->setReferenceIdentifier('order-146')
     ->setCountry('NL')
@@ -66,13 +66,13 @@ $consignments->downloadPdfOfLabels();
 
 It is possible to use multiple carriers. The following carriers are supported:
 
-| ID  | Name   | Carrier class                 | Consignment class                     |
-| --- | ------ | ----------------------------- | ------------------------------------- |
-| 1   | PostNL | `Model\Carrier\CarrierPostNL` | `Model\Consignment\PostNLConsignment` |
-| 2   | Bpost  | `Model\Carrier\CarrierBpost`  | `Model\Consignment\BpostConsignment`  |
-| 3   | DPD    | `Model\Carrier\CarrierDPD`    | `Model\Consignment\DPDConsignment`    |
-| 12  | UPS Standard | `Model\Carrier\CarrierUPSStandard` | `Model\Consignment\UPSStandardConsignment` |
-| 13  | UPS Express Saver | `Model\Carrier\CarrierUPSExpressSaver` | `Model\Consignment\UPSExpressConsignment` |
+| ID  | Name              | Carrier class                          | Consignment class                          |
+| --- | ----------------- | -------------------------------------- | ------------------------------------------ |
+| 1   | PostNL            | `Model\Carrier\CarrierPostNL`          | `Model\Consignment\PostNLConsignment`      |
+| 2   | Bpost             | `Model\Carrier\CarrierBpost`           | `Model\Consignment\BpostConsignment`       |
+| 3   | DPD               | `Model\Carrier\CarrierDPD`             | `Model\Consignment\DPDConsignment`         |
+| 12  | UPS Standard      | `Model\Carrier\CarrierUPSStandard`     | `Model\Consignment\UPSStandardConsignment` |
+| 13  | UPS Express Saver | `Model\Carrier\CarrierUPSExpressSaver` | `Model\Consignment\UPSExpressConsignment`  |
 
 You can query which carriers are available
 like this:
@@ -308,7 +308,7 @@ Available options:
   and `signature`.
   - Set: `setInsurance(250)` (amount in EUR)
   - Get: `getInsurance()`
-- `receipt code`: This option allows you to add the receipt code to a shipment. 
+- `receipt code`: This option allows you to add the receipt code to a shipment.
   This option is only available for NL shipments. The only option that is compatible with this option is `insurance`.
   - Set: `setReceiptCode(true)`
   - Get: `hasReceiptCode()`
@@ -436,11 +436,13 @@ and `getLinkOfLabels()`, **or after** `fetchTrackTraceData()` on the collection
 $consignment = (new \MyParcelNL\Sdk\src\Model\Consignment\PostNLConsignment());
 echo $consignment->getBarcodeURL('3SMYPA123456789', '2231JE', 'NL'); // Barcode , Postal code, Country
 ```
-##### Get Track & Trace history & URL 
+
+##### Get Track & Trace history & URL
 
 The Track & Trace history and link become available **after calling** `fetchTrackTraceData()` on the `MyParcelCollection`.
 
 One shop:
+
 ```php
 $consignments = MyParcelCollection::findMany([123456, 123457], 'API_KEY_SHOP1')
     ->fetchTrackTraceData();      // history + link now set
@@ -452,6 +454,7 @@ foreach ($consignments as $consignment) {
 ```
 
 Multiple shops:
+
 ```php
 $consignments = (new MyParcelCollection())
     ->merge(MyParcelCollection::findMany([111, 112], 'API_KEY_SHOP1'))
@@ -506,7 +509,6 @@ use `findManyByReferenceIdentifier()`, `find()` or `findMany()`.
 For more information,
 see <ApiLink to="6_F" v-text='`\"Get Shipment Label\" in our API reference`' />.
 
-
 ### Create and save orders
 
 Start by creating an `OrderCollection` and setting your API key:
@@ -1000,8 +1002,8 @@ $consignment
 
     // Track & Trace
     // History and link become available after fetchTrackTraceData()
-    ->getHistory()        
-    ->getTrackTraceUrl() 
+    ->getHistory()
+    ->getTrackTraceUrl()
 
     // Physical properties (digital stamps or non-EU shipments)
     ->getPhysicalProperties()