diff --git a/src/QUI/ERP/Customer/Customers.php b/src/QUI/ERP/Customer/Customers.php
index 04398f7b8d6f19f929f61b7f9878be83a7539ce8..3c7da2feb3aa122a81f6382b1294fe7217972b52 100644
--- a/src/QUI/ERP/Customer/Customers.php
+++ b/src/QUI/ERP/Customer/Customers.php
@@ -104,11 +104,11 @@ public function createCustomer($customerId, array $address = [], array $groupIds
 
             $Address->save();
 
-            if (!$User->getAttribute('firstname') || $User->getAttribute('firstname') === '') {
+            if (empty($User->getAttribute('firstname'))) {
                 $User->setAttribute('firstname', $address['firstname']);
             }
 
-            if (!$User->getAttribute('lastname') || $User->getAttribute('lastname') === '') {
+            if (empty($User->getAttribute('lastname'))) {
                 $User->setAttribute('lastname', $address['lastname']);
             }
         }
@@ -221,8 +221,8 @@ public function getCustomerGroup(): ?QUI\Groups\Group
      * @throws QUI\Users\Exception
      */
     public function addUserToCustomerGroup(
-        bool|int|string $userId,
-        QUI\Interfaces\Users\User $PermissionUser = null
+        bool | int | string $userId,
+        null | QUI\Interfaces\Users\User $PermissionUser = null
     ): void {
         if (!$userId) {
             return;
@@ -258,7 +258,7 @@ public function addUserToCustomerGroup(
      * @throws QUI\Exception
      * @throws QUI\Users\Exception
      */
-    public function removeUserFromCustomerGroup(bool|int|string $userId): void
+    public function removeUserFromCustomerGroup(bool | int | string $userId): void
     {
         $customerGroup = null;
 
@@ -287,7 +287,7 @@ public function removeUserFromCustomerGroup(bool|int|string $userId): void
      * @throws QUI\Permissions\Exception
      * @throws QUI\Users\Exception
      */
-    public function setAttributesToCustomer(bool|int|string $userId, array $attributes): void
+    public function setAttributesToCustomer(bool | int | string $userId, array $attributes): void
     {
         $User = QUI::getUsers()->get($userId);
 
diff --git a/src/QUI/ERP/Customer/OpenItemsList/OutputProvider.php b/src/QUI/ERP/Customer/OpenItemsList/OutputProvider.php
index 8a78f318b1f3360a2599a809c72e38cf97ff9e06..0966f0d311bc39cfaf6be2e465b3581de6bb0322 100644
--- a/src/QUI/ERP/Customer/OpenItemsList/OutputProvider.php
+++ b/src/QUI/ERP/Customer/OpenItemsList/OutputProvider.php
@@ -37,7 +37,7 @@ public static function getEntityType(): string
      * @param Locale|null $Locale $Locale (optional) - If ommitted use \QUI::getLocale()
      * @return string
      */
-    public static function getEntityTypeTitle(Locale $Locale = null): string
+    public static function getEntityTypeTitle(null | Locale $Locale = null): string
     {
         if (empty($Locale)) {
             $Locale = QUI::getLocale();