diff --git a/core/modules/menu_link_content/src/MenuLinkContentAccessControlHandler.php b/core/modules/menu_link_content/src/MenuLinkContentAccessControlHandler.php
index c9771d4..c69349e 100644
--- a/core/modules/menu_link_content/src/MenuLinkContentAccessControlHandler.php
+++ b/core/modules/menu_link_content/src/MenuLinkContentAccessControlHandler.php
@@ -56,7 +56,7 @@ protected function checkAccess(EntityInterface $entity, $operation, AccountInter
 
       case 'update':
         if (!$account->hasPermission('administer menu')) {
-          return AccessResult::neutral()->cachePerPermissions();
+          return AccessResult::neutral("The 'administer menu' permission is required.")->cachePerPermissions();
         }
         else {
           // If there is a URL, this is an external link so always accessible.
diff --git a/core/modules/rest/tests/src/Functional/EntityResource/MenuLinkContent/MenuLinkContentJsonBasicAuthTest.php b/core/modules/rest/tests/src/Functional/EntityResource/MenuLinkContent/MenuLinkContentJsonBasicAuthTest.php
index 9be9e55..952088b 100644
--- a/core/modules/rest/tests/src/Functional/EntityResource/MenuLinkContent/MenuLinkContentJsonBasicAuthTest.php
+++ b/core/modules/rest/tests/src/Functional/EntityResource/MenuLinkContent/MenuLinkContentJsonBasicAuthTest.php
@@ -3,7 +3,6 @@
 namespace Drupal\Tests\rest\Functional\EntityResource\MenuLinkContent;
 
 use Drupal\Tests\rest\Functional\BasicAuthResourceTestTrait;
-use Drupal\Tests\rest\Functional\JsonBasicAuthWorkaroundFor2805281Trait;
 
 /**
  * @group rest
diff --git a/core/modules/rest/tests/src/Functional/EntityResource/MenuLinkContent/MenuLinkContentJsonCookieTest.php b/core/modules/rest/tests/src/Functional/EntityResource/MenuLinkContent/MenuLinkContentJsonCookieTest.php
index 155b853..73b4567 100644
--- a/core/modules/rest/tests/src/Functional/EntityResource/MenuLinkContent/MenuLinkContentJsonCookieTest.php
+++ b/core/modules/rest/tests/src/Functional/EntityResource/MenuLinkContent/MenuLinkContentJsonCookieTest.php
@@ -1,10 +1,5 @@
 <?php
 
-/**
- * @file
- * Contains \Drupal\Tests\rest\Functional\EntityResource\MenuLinkContent\MenuLinkContentJsonCookieTest.
- */
-
 namespace Drupal\Tests\rest\Functional\EntityResource\MenuLinkContent;
 
 use Drupal\Tests\rest\Functional\CookieResourceTestTrait;
diff --git a/core/modules/rest/tests/src/Functional/EntityResource/MenuLinkContent/MenuLinkContentResourceTestBase.php b/core/modules/rest/tests/src/Functional/EntityResource/MenuLinkContent/MenuLinkContentResourceTestBase.php
index 37117eb..28a2ed6 100644
--- a/core/modules/rest/tests/src/Functional/EntityResource/MenuLinkContent/MenuLinkContentResourceTestBase.php
+++ b/core/modules/rest/tests/src/Functional/EntityResource/MenuLinkContent/MenuLinkContentResourceTestBase.php
@@ -170,8 +170,24 @@ protected function getExpectedNormalizedEntity() {
            'value' => '1',
          ],
        ],
-      'parent' => [],
+       'parent' => [],
      ];
   }
 
+  /**
+   * {@inheritdoc}
+   */
+  protected function getExpectedUnauthorizedAccessMessage($method) {
+    if ($this->config('rest.settings')->get('bc_entity_resource_permissions')) {
+      return parent::getExpectedUnauthorizedAccessMessage($method);
+    }
+
+    switch ($method) {
+      case 'DELETE':
+        return "You are not authorized to delete this menu_link_content entity.";
+      default:
+        return parent::getExpectedUnauthorizedAccessMessage($method);
+    }
+  }
+
 }