diff --git a/src/Id/Enums/Scope.php b/src/Id/Enums/Scope.php
index 0ce17a2..1a2c35a 100644
--- a/src/Id/Enums/Scope.php
+++ b/src/Id/Enums/Scope.php
@@ -33,6 +33,12 @@ class Scope
     const TRANSACTIONS_READ = 'transactions:read';
     const TRANSACTIONS_CLIENT = 'transactions:client';
 
+    // The user's own shared preferences (`global`). PREFERENCES_CLIENT labels an app token for
+    // the preferences of any user; access to a namespace is granted by Anikeen, not by the scope.
+    const PREFERENCES = 'preferences';
+    const PREFERENCES_READ = 'preferences:read';
+    const PREFERENCES_CLIENT = 'preferences:client';
+
     const SSH_KEYS = 'ssh-keys';
     const SSH_KEYS_READ = 'ssh-keys:read';
 
diff --git a/tests/Id/ScopeTest.php b/tests/Id/ScopeTest.php
index 08b3642..8273452 100644
--- a/tests/Id/ScopeTest.php
+++ b/tests/Id/ScopeTest.php
@@ -25,6 +25,13 @@ class ScopeTest extends TestCase
         $this->assertSame($expected, $constant);
     }
 
+    public function test_the_preference_scopes_match_anikeen_id(): void
+    {
+        $this->assertSame('preferences', Scope::PREFERENCES);
+        $this->assertSame('preferences:read', Scope::PREFERENCES_READ);
+        $this->assertSame('preferences:client', Scope::PREFERENCES_CLIENT);
+    }
+
     public function test_there_is_no_full_products_scope_the_console_would_not_accept(): void
     {
         // the Console's product APIs accept `user`, `user:read` and `products:read` only