diff --git a/app/Models/SnipeSCIMConfig.php b/app/Models/SnipeSCIMConfig.php
index ea442bbdda..77cbf01c1a 100644
--- a/app/Models/SnipeSCIMConfig.php
+++ b/app/Models/SnipeSCIMConfig.php
@@ -35,27 +35,27 @@ class SnipeSCIMConfig extends \ArieTimmerman\Laravel\SCIMServer\SCIMConfig
             'validations' => [
                 $user_prefix . 'userName' => 'required',
                 $user_prefix . 'name.givenName' => 'required',
-                $user_prefix . 'name.familyName' => 'string',
-                $user_prefix . 'externalId' => 'string|nullable',
+                $user_prefix . 'name.familyName' => 'nullable|string',
+                $user_prefix . 'externalId' => 'nullable|string',
                 $user_prefix . 'emails' => 'nullable|array',
-                $user_prefix . 'emails.*.value' => 'email',
+                $user_prefix . 'emails.*.value' => 'nullable|email',
                 $user_prefix . 'active' => 'boolean',
                 $user_prefix . 'phoneNumbers' => 'nullable|array',
-                $user_prefix . 'phoneNumbers.*.value' => 'string',
+                $user_prefix . 'phoneNumbers.*.value' => 'nullable|string',
                 $user_prefix . 'addresses' => 'nullable|array',
-                $user_prefix . 'addresses.*.streetAddress' => 'string',
-                $user_prefix . 'addresses.*.locality' => 'string',
+                $user_prefix . 'addresses.*.streetAddress' => 'nullable|string',
+                $user_prefix . 'addresses.*.locality' => 'nullable|string',
                 $user_prefix . 'addresses.*.region' => 'nullable|string',
                 $user_prefix . 'addresses.*.postalCode' => 'nullable|string',
-                $user_prefix . 'addresses.*.country' => 'string',
-                $user_prefix . 'title' => 'string',
-                $user_prefix . 'preferredLanguage' => 'string',
+                $user_prefix . 'addresses.*.country' => 'nullable|string',
+                $user_prefix . 'title' => 'nullable|string',
+                $user_prefix . 'preferredLanguage' => 'nullable|string',
 
                 // Enterprise validations:
-                $enterprise_prefix . 'employeeNumber' => 'string',
-                $enterprise_prefix . 'department' => 'string',
+                $enterprise_prefix . 'employeeNumber' => 'nullable|string',
+                $enterprise_prefix . 'department' => 'nullable|string',
                 $enterprise_prefix . 'manager' => 'nullable',
-                $enterprise_prefix . 'manager.value' => 'string'
+                $enterprise_prefix . 'manager.value' => 'nullable|string'
             ],
 
             'singular' => 'User',