diff --git a/tests/e2e/Services/Project/KeysBase.php b/tests/e2e/Services/Project/KeysBase.php
index fda5ef377f..48c584a374 100644
--- a/tests/e2e/Services/Project/KeysBase.php
+++ b/tests/e2e/Services/Project/KeysBase.php
@@ -93,6 +93,58 @@ trait KeysBase
         $this->deleteKey($key['body']['$id']);
     }
 
+    public function testCreateKeyWithNullScopesV22BackwardCompat(): void
+    {
+        $headers = [
+            'content-type' => 'application/json',
+            'x-appwrite-project' => $this->getProject()['$id'],
+            'x-appwrite-response-format' => '1.9.0',
+        ];
+        $headers = array_merge($headers, $this->getHeaders());
+
+        $key = $this->client->call(Client::METHOD_POST, '/project/keys', $headers, [
+            'keyId' => ID::unique(),
+            'name' => 'V22 Compat Key',
+            'scopes' => null,
+        ]);
+
+        $this->assertSame(201, $key['headers']['status-code']);
+        $this->assertSame([], $key['body']['scopes']);
+
+        // Cleanup
+        $this->deleteKey($key['body']['$id']);
+    }
+
+    public function testUpdateKeyWithNullScopesV22BackwardCompat(): void
+    {
+        $key = $this->createKey(
+            ID::unique(),
+            'V22 Update Compat Key',
+            ['users.read'],
+        );
+
+        $this->assertSame(201, $key['headers']['status-code']);
+        $keyId = $key['body']['$id'];
+
+        $headers = [
+            'content-type' => 'application/json',
+            'x-appwrite-project' => $this->getProject()['$id'],
+            'x-appwrite-response-format' => '1.9.0',
+        ];
+        $headers = array_merge($headers, $this->getHeaders());
+
+        $updated = $this->client->call(Client::METHOD_PUT, '/project/keys/' . $keyId, $headers, [
+            'name' => 'V22 Update Compat Key',
+            'scopes' => null,
+        ]);
+
+        $this->assertSame(200, $updated['headers']['status-code']);
+        $this->assertSame([], $updated['body']['scopes']);
+
+        // Cleanup
+        $this->deleteKey($keyId);
+    }
+
     public function testCreateKeyWithoutAuthentication(): void
     {
         $response = $this->createKey(