diff --git a/core/modules/rest/tests/src/Functional/EntityResource/EntityResourceTestBase.php b/core/modules/rest/tests/src/Functional/EntityResource/EntityResourceTestBase.php
index b358146d65..3362df4f16 100644
--- a/core/modules/rest/tests/src/Functional/EntityResource/EntityResourceTestBase.php
+++ b/core/modules/rest/tests/src/Functional/EntityResource/EntityResourceTestBase.php
@@ -743,11 +743,6 @@ public function testPost() {
     $this->assertFalse($response->hasHeader('X-Drupal-Cache'));
 
 
-    // DX: 409 when POSTing to an existing entity.
-    $response = $this->request('POST', $this->getUrl(), $request_options);
-    $this->assertResourceResponse(409, 'Some useful message', $response);
-
-
     $this->config('rest.settings')->set('bc_entity_resource_permissions', TRUE)->save(TRUE);
     $this->refreshTestStateAfterRestConfigChange();
     $request_options[RequestOptions::BODY] = $parseable_valid_request_body_2;
@@ -761,6 +756,11 @@ public function testPost() {
     $this->grantPermissionsToTestedRole(['restful post entity:' . static::$entityTypeId]);
 
 
+    // DX: 409 when POSTing to an existing entity.
+    $response = $this->request('POST', $this->getUrl(), $request_options);
+    $this->assertResourceResponse(409, 'Some useful message', $response);
+
+
     // 201 for well-formed request.
     // Delete the first created entity in case there is a uniqueness constraint.
     $this->entityStorage->load(static::$firstCreatedEntityId)->delete();